Improving Tribological Performance of Gray Cast Iron by Laser Peening in Dynamic Strain Aging Temperature Regime
A high and stable brake disc friction coefficient is needed for automobile safety, while the coefficient degrades due to elevated temperature during the braking process. There is no better solution except changes in material composition and shape design optimization. In the dynamic strain aging（DSA）...
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| Veröffentlicht in: | Chinese journal of mechanical engineering 2015-09, Vol.28 (5), p.904-910 |
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| creator | Feng, Xu Zhou, Jianzhong Mei, Yufen Huang, Shu Sheng, Jie Zhu, Weili |
| description | A high and stable brake disc friction coefficient is needed for automobile safety, while the coefficient degrades due to elevated temperature during the braking process. There is no better solution except changes in material composition and shape design optimization. In the dynamic strain aging（DSA） temperature regime of gray cast iron, micro-dimples with different dimple depth over diameter and surface area density are fabricated on the material surface by laser peening（LP） which is an LST method. Friction behavior and wear mechanism are investigated to evaluate the effects of surface texturing on the tribological performance of specimens under dry conditions. Through LP impacts assisted by DSA, the friction coefficients of the LPed specimens increase noticeably both at room temperature and elevated temperature in comparison to untreated specimens. Moreover, the coefficient of specimen with dimple depth over diameter of 0.03 and surface area density of 30% is up to 0.351 at room temperature, which dramatically rises up to 1.33 times that of untextured specimen and the value is still up to 0.3305 at 400℃ with an increasing ratio of 35% compared to that of untreated specimen. The surface of textured specimen shows better wear resistance compared to untreated specimen. Wear mechanism includes adhesive wear, abrasive wear and oxidation wear. It is demonstrated that LP assisted by DSA can substantially improve wear resistance, raise the friction coefficient as well as its stability of gray cast iron under elevated temperatures. Heat fade and premature wear can be effectively relieved by this surface modification method. |
| doi_str_mv | 10.3901/CJME.2015.0422.046 |
| format | Article |
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There is no better solution except changes in material composition and shape design optimization. In the dynamic strain aging（DSA） temperature regime of gray cast iron, micro-dimples with different dimple depth over diameter and surface area density are fabricated on the material surface by laser peening（LP） which is an LST method. Friction behavior and wear mechanism are investigated to evaluate the effects of surface texturing on the tribological performance of specimens under dry conditions. Through LP impacts assisted by DSA, the friction coefficients of the LPed specimens increase noticeably both at room temperature and elevated temperature in comparison to untreated specimens. Moreover, the coefficient of specimen with dimple depth over diameter of 0.03 and surface area density of 30% is up to 0.351 at room temperature, which dramatically rises up to 1.33 times that of untextured specimen and the value is still up to 0.3305 at 400℃ with an increasing ratio of 35% compared to that of untreated specimen. The surface of textured specimen shows better wear resistance compared to untreated specimen. Wear mechanism includes adhesive wear, abrasive wear and oxidation wear. It is demonstrated that LP assisted by DSA can substantially improve wear resistance, raise the friction coefficient as well as its stability of gray cast iron under elevated temperatures. Heat fade and premature wear can be effectively relieved by this surface modification method.</description><edition>English ed.</edition><identifier>ISSN: 1000-9345</identifier><identifier>EISSN: 2192-8258</identifier><identifier>DOI: 10.3901/CJME.2015.0422.046</identifier><language>eng</language><publisher>Beijing: Chinese Mechanical Engineering Society</publisher><subject>Abrasive wear ; Adhesive wear ; Braking ; Coefficient of friction ; Density ; Design optimization ; Dimpling ; Dynamic strain aging ; Electrical Machines and Networks ; Electronics and Microelectronics ; Engineering ; Engineering Thermodynamics ; Friction ; Friction resistance ; Gray iron ; Heat and Mass Transfer ; High temperature ; Instrumentation ; Machines ; Manufacturing ; Mechanical Engineering ; Oxidation ; Peening ; Power Electronics ; Precipitation hardening ; Processes ; Surface area ; Temperature ; Texturing ; Theoretical and Applied Mechanics ; Tribology ; Wear mechanisms ; Wear resistance ; 动态应变时效 ; 喷丸强化 ; 摩擦磨损性能 ; 摩擦磨损机理 ; 时效温度 ; 激光 ; 灰铸铁 ; 高摩擦系数</subject><ispartof>Chinese journal of mechanical engineering, 2015-09, Vol.28 (5), p.904-910</ispartof><rights>Chinese Mechanical Engineering Society and Springer-Verlag Berlin Heidelberg 2015</rights><rights>Chinese Journal of Mechanical Engineering is a copyright of Springer, (2015). All Rights Reserved.</rights><rights>Copyright © Wanfang Data Co. Ltd. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c380t-32547742e381b203094b4582ff3b8512c61affcd5afea7db77988fc451c1c5ab3</citedby><cites>FETCH-LOGICAL-c380t-32547742e381b203094b4582ff3b8512c61affcd5afea7db77988fc451c1c5ab3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/85891X/85891X.jpg</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Feng, Xu</creatorcontrib><creatorcontrib>Zhou, Jianzhong</creatorcontrib><creatorcontrib>Mei, Yufen</creatorcontrib><creatorcontrib>Huang, Shu</creatorcontrib><creatorcontrib>Sheng, Jie</creatorcontrib><creatorcontrib>Zhu, Weili</creatorcontrib><title>Improving Tribological Performance of Gray Cast Iron by Laser Peening in Dynamic Strain Aging Temperature Regime</title><title>Chinese journal of mechanical engineering</title><addtitle>Chin. J. Mech. Eng</addtitle><addtitle>Chinese Journal of Mechanical Engineering</addtitle><description>A high and stable brake disc friction coefficient is needed for automobile safety, while the coefficient degrades due to elevated temperature during the braking process. There is no better solution except changes in material composition and shape design optimization. In the dynamic strain aging（DSA） temperature regime of gray cast iron, micro-dimples with different dimple depth over diameter and surface area density are fabricated on the material surface by laser peening（LP） which is an LST method. Friction behavior and wear mechanism are investigated to evaluate the effects of surface texturing on the tribological performance of specimens under dry conditions. Through LP impacts assisted by DSA, the friction coefficients of the LPed specimens increase noticeably both at room temperature and elevated temperature in comparison to untreated specimens. Moreover, the coefficient of specimen with dimple depth over diameter of 0.03 and surface area density of 30% is up to 0.351 at room temperature, which dramatically rises up to 1.33 times that of untextured specimen and the value is still up to 0.3305 at 400℃ with an increasing ratio of 35% compared to that of untreated specimen. The surface of textured specimen shows better wear resistance compared to untreated specimen. Wear mechanism includes adhesive wear, abrasive wear and oxidation wear. It is demonstrated that LP assisted by DSA can substantially improve wear resistance, raise the friction coefficient as well as its stability of gray cast iron under elevated temperatures. Heat fade and premature wear can be effectively relieved by this surface modification method.</description><subject>Abrasive wear</subject><subject>Adhesive wear</subject><subject>Braking</subject><subject>Coefficient of friction</subject><subject>Density</subject><subject>Design optimization</subject><subject>Dimpling</subject><subject>Dynamic strain aging</subject><subject>Electrical Machines and Networks</subject><subject>Electronics and Microelectronics</subject><subject>Engineering</subject><subject>Engineering Thermodynamics</subject><subject>Friction</subject><subject>Friction resistance</subject><subject>Gray iron</subject><subject>Heat and Mass Transfer</subject><subject>High temperature</subject><subject>Instrumentation</subject><subject>Machines</subject><subject>Manufacturing</subject><subject>Mechanical Engineering</subject><subject>Oxidation</subject><subject>Peening</subject><subject>Power Electronics</subject><subject>Precipitation hardening</subject><subject>Processes</subject><subject>Surface area</subject><subject>Temperature</subject><subject>Texturing</subject><subject>Theoretical and Applied Mechanics</subject><subject>Tribology</subject><subject>Wear mechanisms</subject><subject>Wear resistance</subject><subject>动态应变时效</subject><subject>喷丸强化</subject><subject>摩擦磨损性能</subject><subject>摩擦磨损机理</subject><subject>时效温度</subject><subject>激光</subject><subject>灰铸铁</subject><subject>高摩擦系数</subject><issn>1000-9345</issn><issn>2192-8258</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp9kUtPwzAQhC0EEuXxBzhZcOKQ4kecOMeqFCgqAkE5W46xQ6rGbu0Umn-PQxHcuOxqpW9mpB0AzjAa0gLhq_H9w2RIEGZDlBISR7YHBgQXJOGE8X0wwAihpKApOwRHISzilWHMB2A1bVbefdS2gnNfl27pqlrJJXzS3jjfSKs0dAbeetnBsQwtnHpnYdnBmQzaR0zbXltbeN1Z2dQKvrRexnNUfXvqZqW9bDdew2dd1Y0-AQdGLoM-_dnH4PVmMh_fJbPH2-l4NEsU5ahNKGFpnqdEU45Lgigq0jJlnBhDS84wURmWxqg3Jo2W-VuZ5wXnRqUMK6yYLOkxuNz5fkprpK3Ewm28jYlisa3UthS6fxdiCLHIXuzY-Ir1Rof2DyaEFTSnBespsqOUdyF4bcTK1430ncBI9C2IvgXR24q-hTiyKKI7UYiwrbT_s_5Xdf4T9e5stY7C36wsy1CGcI7pF6PplX4</recordid><startdate>20150901</startdate><enddate>20150901</enddate><creator>Feng, Xu</creator><creator>Zhou, Jianzhong</creator><creator>Mei, Yufen</creator><creator>Huang, Shu</creator><creator>Sheng, Jie</creator><creator>Zhu, Weili</creator><general>Chinese Mechanical Engineering Society</general><general>Springer Nature B.V</general><general>School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20150901</creationdate><title>Improving Tribological Performance of Gray Cast Iron by Laser Peening in Dynamic Strain Aging Temperature Regime</title><author>Feng, Xu ; Zhou, Jianzhong ; Mei, Yufen ; Huang, Shu ; Sheng, Jie ; Zhu, Weili</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c380t-32547742e381b203094b4582ff3b8512c61affcd5afea7db77988fc451c1c5ab3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Abrasive wear</topic><topic>Adhesive wear</topic><topic>Braking</topic><topic>Coefficient of friction</topic><topic>Density</topic><topic>Design optimization</topic><topic>Dimpling</topic><topic>Dynamic strain aging</topic><topic>Electrical Machines and Networks</topic><topic>Electronics and Microelectronics</topic><topic>Engineering</topic><topic>Engineering Thermodynamics</topic><topic>Friction</topic><topic>Friction resistance</topic><topic>Gray iron</topic><topic>Heat and Mass Transfer</topic><topic>High temperature</topic><topic>Instrumentation</topic><topic>Machines</topic><topic>Manufacturing</topic><topic>Mechanical Engineering</topic><topic>Oxidation</topic><topic>Peening</topic><topic>Power Electronics</topic><topic>Precipitation hardening</topic><topic>Processes</topic><topic>Surface area</topic><topic>Temperature</topic><topic>Texturing</topic><topic>Theoretical and Applied Mechanics</topic><topic>Tribology</topic><topic>Wear mechanisms</topic><topic>Wear resistance</topic><topic>动态应变时效</topic><topic>喷丸强化</topic><topic>摩擦磨损性能</topic><topic>摩擦磨损机理</topic><topic>时效温度</topic><topic>激光</topic><topic>灰铸铁</topic><topic>高摩擦系数</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Feng, Xu</creatorcontrib><creatorcontrib>Zhou, Jianzhong</creatorcontrib><creatorcontrib>Mei, Yufen</creatorcontrib><creatorcontrib>Huang, Shu</creatorcontrib><creatorcontrib>Sheng, Jie</creatorcontrib><creatorcontrib>Zhu, Weili</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Access via ProQuest (Open Access)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Chinese journal of mechanical engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Feng, Xu</au><au>Zhou, Jianzhong</au><au>Mei, Yufen</au><au>Huang, Shu</au><au>Sheng, Jie</au><au>Zhu, Weili</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Improving Tribological Performance of Gray Cast Iron by Laser Peening in Dynamic Strain Aging Temperature Regime</atitle><jtitle>Chinese journal of mechanical engineering</jtitle><stitle>Chin. J. Mech. Eng</stitle><addtitle>Chinese Journal of Mechanical Engineering</addtitle><date>2015-09-01</date><risdate>2015</risdate><volume>28</volume><issue>5</issue><spage>904</spage><epage>910</epage><pages>904-910</pages><issn>1000-9345</issn><eissn>2192-8258</eissn><abstract>A high and stable brake disc friction coefficient is needed for automobile safety, while the coefficient degrades due to elevated temperature during the braking process. There is no better solution except changes in material composition and shape design optimization. In the dynamic strain aging（DSA） temperature regime of gray cast iron, micro-dimples with different dimple depth over diameter and surface area density are fabricated on the material surface by laser peening（LP） which is an LST method. Friction behavior and wear mechanism are investigated to evaluate the effects of surface texturing on the tribological performance of specimens under dry conditions. Through LP impacts assisted by DSA, the friction coefficients of the LPed specimens increase noticeably both at room temperature and elevated temperature in comparison to untreated specimens. Moreover, the coefficient of specimen with dimple depth over diameter of 0.03 and surface area density of 30% is up to 0.351 at room temperature, which dramatically rises up to 1.33 times that of untextured specimen and the value is still up to 0.3305 at 400℃ with an increasing ratio of 35% compared to that of untreated specimen. The surface of textured specimen shows better wear resistance compared to untreated specimen. Wear mechanism includes adhesive wear, abrasive wear and oxidation wear. It is demonstrated that LP assisted by DSA can substantially improve wear resistance, raise the friction coefficient as well as its stability of gray cast iron under elevated temperatures. Heat fade and premature wear can be effectively relieved by this surface modification method.</abstract><cop>Beijing</cop><pub>Chinese Mechanical Engineering Society</pub><doi>10.3901/CJME.2015.0422.046</doi><tpages>7</tpages><edition>English ed.</edition><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1000-9345 |
| ispartof | Chinese journal of mechanical engineering, 2015-09, Vol.28 (5), p.904-910 |
| issn | 1000-9345 2192-8258 |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | Abrasive wear Adhesive wear Braking Coefficient of friction Density Design optimization Dimpling Dynamic strain aging Electrical Machines and Networks Electronics and Microelectronics Engineering Engineering Thermodynamics Friction Friction resistance Gray iron Heat and Mass Transfer High temperature Instrumentation Machines Manufacturing Mechanical Engineering Oxidation Peening Power Electronics Precipitation hardening Processes Surface area Temperature Texturing Theoretical and Applied Mechanics Tribology Wear mechanisms Wear resistance 动态应变时效 喷丸强化 摩擦磨损性能 摩擦磨损机理 时效温度 激光 灰铸铁 高摩擦系数 |
| title | Improving Tribological Performance of Gray Cast Iron by Laser Peening in Dynamic Strain Aging Temperature Regime |
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