Effect of laser surface melting on friction and wear behavior of AM50 magnesium alloy
In the present study, an attempt has been made to enhance tribological properties of AM50 magnesium alloy by laser surface melting (LSM) with a 2 kW continuous wave CO 2 laser. The microstructure of the laser surface melted zone consists of fine columnar dendrites growing epitaxially from the liquid...
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| Veröffentlicht in: | Surface & coatings technology 2008-04, Vol.202 (14), p.3175-3179 |
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| container_title | Surface & coatings technology |
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| creator | Zhang, Yongkang Chen, Jufang Lei, Weining Xv, Renjun |
| description | In the present study, an attempt has been made to enhance tribological properties of AM50 magnesium alloy by laser surface melting (LSM) with a 2 kW continuous wave CO
2 laser. The microstructure of the laser surface melted zone consists of fine columnar dendrites growing epitaxially from the liquid–solid interface. Microhardness of the melted zone was improved to 55–75 HV as compared to 40 HV of the substrate. The friction and wear behavior of the laser surface melted layer were investigated using a ball-on-flat apparatus under dry sliding condition. It was found that the friction coefficient curve of the laser surface melted layer was similar to that of substrate. They showed a lower initial friction coefficient about 0.18 that after the running-in period increased up to about 0.38. Furthermore, compared with the AM50 substrate, the wear volume of the laser surface melted layer was decreased by 42%, the wear resistance of the laser surface melted layer was improved. |
| doi_str_mv | 10.1016/j.surfcoat.2007.11.023 |
| format | Article |
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2 laser. The microstructure of the laser surface melted zone consists of fine columnar dendrites growing epitaxially from the liquid–solid interface. Microhardness of the melted zone was improved to 55–75 HV as compared to 40 HV of the substrate. The friction and wear behavior of the laser surface melted layer were investigated using a ball-on-flat apparatus under dry sliding condition. It was found that the friction coefficient curve of the laser surface melted layer was similar to that of substrate. They showed a lower initial friction coefficient about 0.18 that after the running-in period increased up to about 0.38. Furthermore, compared with the AM50 substrate, the wear volume of the laser surface melted layer was decreased by 42%, the wear resistance of the laser surface melted layer was improved.</description><identifier>ISSN: 0257-8972</identifier><identifier>EISSN: 1879-3347</identifier><identifier>DOI: 10.1016/j.surfcoat.2007.11.023</identifier><identifier>CODEN: SCTEEJ</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Applied sciences ; Contact of materials. Friction. Wear ; Cross-disciplinary physics: materials science; rheology ; Exact sciences and technology ; Friction and wear behavior ; Laser surface melting ; Magnesium alloy ; Materials science ; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology ; Metals. Metallurgy ; Physics ; Production techniques ; Surface treatment ; Surface treatments</subject><ispartof>Surface & coatings technology, 2008-04, Vol.202 (14), p.3175-3179</ispartof><rights>2007 Elsevier B.V.</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c373t-6ac8077322dd958b1789d541c3695e2b785ff3fdf7fd9d393b4f0f4e2ce338483</citedby><cites>FETCH-LOGICAL-c373t-6ac8077322dd958b1789d541c3695e2b785ff3fdf7fd9d393b4f0f4e2ce338483</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.surfcoat.2007.11.023$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20238262$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhang, Yongkang</creatorcontrib><creatorcontrib>Chen, Jufang</creatorcontrib><creatorcontrib>Lei, Weining</creatorcontrib><creatorcontrib>Xv, Renjun</creatorcontrib><title>Effect of laser surface melting on friction and wear behavior of AM50 magnesium alloy</title><title>Surface & coatings technology</title><description>In the present study, an attempt has been made to enhance tribological properties of AM50 magnesium alloy by laser surface melting (LSM) with a 2 kW continuous wave CO
2 laser. The microstructure of the laser surface melted zone consists of fine columnar dendrites growing epitaxially from the liquid–solid interface. Microhardness of the melted zone was improved to 55–75 HV as compared to 40 HV of the substrate. The friction and wear behavior of the laser surface melted layer were investigated using a ball-on-flat apparatus under dry sliding condition. It was found that the friction coefficient curve of the laser surface melted layer was similar to that of substrate. They showed a lower initial friction coefficient about 0.18 that after the running-in period increased up to about 0.38. Furthermore, compared with the AM50 substrate, the wear volume of the laser surface melted layer was decreased by 42%, the wear resistance of the laser surface melted layer was improved.</description><subject>Applied sciences</subject><subject>Contact of materials. Friction. Wear</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>Friction and wear behavior</subject><subject>Laser surface melting</subject><subject>Magnesium alloy</subject><subject>Materials science</subject><subject>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</subject><subject>Metals. Metallurgy</subject><subject>Physics</subject><subject>Production techniques</subject><subject>Surface treatment</subject><subject>Surface treatments</subject><issn>0257-8972</issn><issn>1879-3347</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqFkMtOwzAQRS0EEuXxC8gb2CX4kcT2jgqVh1TEhq4t1x4XV0kMdlrUvydVgS2rmcW5dzQHoStKSkpoc7su8yZ5G81QMkJESWlJGD9CEyqFKjivxDGaEFaLQirBTtFZzmtCCBWqmqDFzHuwA44etyZDwvsuYwF30A6hX-HYY5-CHcK4mN7hLzAJL-HdbENM-9j0pSa4M6secth02LRt3F2gE2_aDJc_8xwtHmZv90_F_PXx-X46LywXfCgaYyURgjPmnKrlkgqpXF1RyxtVA1sKWXvPvfPCO-W44svKE18Bs8C5rCQ_RzeH3o8UPzeQB92FbKFtTQ9xkzVnvKaKNCPYHECbYs4JvP5IoTNppynRe4t6rX8t6r1FTakeLY7B658LJlvT-mR6G_Jfmo2MZA0bubsDB-O72wBJZxugt-BCGv1qF8N_p74BxqCLiw</recordid><startdate>20080415</startdate><enddate>20080415</enddate><creator>Zhang, Yongkang</creator><creator>Chen, Jufang</creator><creator>Lei, Weining</creator><creator>Xv, Renjun</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20080415</creationdate><title>Effect of laser surface melting on friction and wear behavior of AM50 magnesium alloy</title><author>Zhang, Yongkang ; Chen, Jufang ; Lei, Weining ; Xv, Renjun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c373t-6ac8077322dd958b1789d541c3695e2b785ff3fdf7fd9d393b4f0f4e2ce338483</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Applied sciences</topic><topic>Contact of materials. Friction. Wear</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Exact sciences and technology</topic><topic>Friction and wear behavior</topic><topic>Laser surface melting</topic><topic>Magnesium alloy</topic><topic>Materials science</topic><topic>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</topic><topic>Metals. Metallurgy</topic><topic>Physics</topic><topic>Production techniques</topic><topic>Surface treatment</topic><topic>Surface treatments</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Yongkang</creatorcontrib><creatorcontrib>Chen, Jufang</creatorcontrib><creatorcontrib>Lei, Weining</creatorcontrib><creatorcontrib>Xv, Renjun</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Surface & coatings technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Yongkang</au><au>Chen, Jufang</au><au>Lei, Weining</au><au>Xv, Renjun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of laser surface melting on friction and wear behavior of AM50 magnesium alloy</atitle><jtitle>Surface & coatings technology</jtitle><date>2008-04-15</date><risdate>2008</risdate><volume>202</volume><issue>14</issue><spage>3175</spage><epage>3179</epage><pages>3175-3179</pages><issn>0257-8972</issn><eissn>1879-3347</eissn><coden>SCTEEJ</coden><abstract>In the present study, an attempt has been made to enhance tribological properties of AM50 magnesium alloy by laser surface melting (LSM) with a 2 kW continuous wave CO
2 laser. The microstructure of the laser surface melted zone consists of fine columnar dendrites growing epitaxially from the liquid–solid interface. Microhardness of the melted zone was improved to 55–75 HV as compared to 40 HV of the substrate. The friction and wear behavior of the laser surface melted layer were investigated using a ball-on-flat apparatus under dry sliding condition. It was found that the friction coefficient curve of the laser surface melted layer was similar to that of substrate. They showed a lower initial friction coefficient about 0.18 that after the running-in period increased up to about 0.38. Furthermore, compared with the AM50 substrate, the wear volume of the laser surface melted layer was decreased by 42%, the wear resistance of the laser surface melted layer was improved.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.surfcoat.2007.11.023</doi><tpages>5</tpages></addata></record> |
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| ispartof | Surface & coatings technology, 2008-04, Vol.202 (14), p.3175-3179 |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Applied sciences Contact of materials. Friction. Wear Cross-disciplinary physics: materials science rheology Exact sciences and technology Friction and wear behavior Laser surface melting Magnesium alloy Materials science Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Physics Production techniques Surface treatment Surface treatments |
| title | Effect of laser surface melting on friction and wear behavior of AM50 magnesium alloy |
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