Effect of combined shot-peening and PEO treatment on fatigue life of 2024 Al alloy
One of the most important objectives in the surface engineering of light-weight alloys is to enhance their fatigue properties, allowing both increased performance and an extended service life. This can be achieved by forming a hard surface layer while incorporating a favourable stress state. Single...
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| Veröffentlicht in: | Thin solid films 2006-11, Vol.515 (3), p.1187-1191 |
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| creator | Asquith, D.T. Yerokhin, A.L. Yates, J.R. Matthews, A. |
| description | One of the most important objectives in the surface engineering of light-weight alloys is to enhance their fatigue properties, allowing both increased performance and an extended service life. This can be achieved by forming a hard surface layer while incorporating a favourable stress state. Single surface treatments, for example, Plasma Electrolytic Oxidation (PEO), are not always capable of creating optimal combinations of these characteristics, whereas greater durability can be achieved by applying mechanical pre-treatments prior to the coating. In this work, a combination of shot-peening pre-treatment with plasma electrolytic oxidation coating is studied as a means to improve the fatigue performance of 2024 T351 Al alloy. The shot-peening was carried out in a compressed air configuration using S110 gauge shot at 200% coverage with an intensity of 20 AlmenC. PEO coatings of 30 μm thickness were produced using pulsed bipolar current technology. Fatigue properties were evaluated by a four-point bending technique at a stress ratio of 0.1. Hardness, residual stress and microstructure of the surface layers were studied by Knoop microhardness tests, fluorescence spectroscopy and SEM analyses, respectively. The effect of the combined shot-peening and PEO treatment is an increased fatigue limit and elevated microhardness when compared to aluminium treated only with PEO. |
| doi_str_mv | 10.1016/j.tsf.2006.07.123 |
| format | Article |
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This can be achieved by forming a hard surface layer while incorporating a favourable stress state. Single surface treatments, for example, Plasma Electrolytic Oxidation (PEO), are not always capable of creating optimal combinations of these characteristics, whereas greater durability can be achieved by applying mechanical pre-treatments prior to the coating. In this work, a combination of shot-peening pre-treatment with plasma electrolytic oxidation coating is studied as a means to improve the fatigue performance of 2024 T351 Al alloy. The shot-peening was carried out in a compressed air configuration using S110 gauge shot at 200% coverage with an intensity of 20 AlmenC. PEO coatings of 30 μm thickness were produced using pulsed bipolar current technology. Fatigue properties were evaluated by a four-point bending technique at a stress ratio of 0.1. Hardness, residual stress and microstructure of the surface layers were studied by Knoop microhardness tests, fluorescence spectroscopy and SEM analyses, respectively. The effect of the combined shot-peening and PEO treatment is an increased fatigue limit and elevated microhardness when compared to aluminium treated only with PEO.</description><identifier>ISSN: 0040-6090</identifier><identifier>EISSN: 1879-2731</identifier><identifier>DOI: 10.1016/j.tsf.2006.07.123</identifier><identifier>CODEN: THSFAP</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Aluminium ; Aluminium oxide ; Condensed matter: structure, mechanical and thermal properties ; Exact sciences and technology ; Mechanical and acoustical properties ; Physical properties of thin films, nonelectronic ; Physics ; Physics of gases, plasmas and electric discharges ; Physics of plasmas and electric discharges ; Plasma applications ; Plasma electrolytic oxidation (PEO) ; Raman scattering ; Residual stress ; Shot-peening, fatigue ; Structure and morphology; thickness ; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties) ; Thin film structure and morphology</subject><ispartof>Thin solid films, 2006-11, Vol.515 (3), p.1187-1191</ispartof><rights>2006 Elsevier B.V.</rights><rights>2007 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c389t-b00dfe0fa837af48ae8b46dc1132f30f07ce7b27dfb47089d241ad4f834c57263</citedby><cites>FETCH-LOGICAL-c389t-b00dfe0fa837af48ae8b46dc1132f30f07ce7b27dfb47089d241ad4f834c57263</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0040609006009291$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>309,310,314,776,780,785,786,3537,23909,23910,25118,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18460998$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Asquith, D.T.</creatorcontrib><creatorcontrib>Yerokhin, A.L.</creatorcontrib><creatorcontrib>Yates, J.R.</creatorcontrib><creatorcontrib>Matthews, A.</creatorcontrib><title>Effect of combined shot-peening and PEO treatment on fatigue life of 2024 Al alloy</title><title>Thin solid films</title><description>One of the most important objectives in the surface engineering of light-weight alloys is to enhance their fatigue properties, allowing both increased performance and an extended service life. This can be achieved by forming a hard surface layer while incorporating a favourable stress state. Single surface treatments, for example, Plasma Electrolytic Oxidation (PEO), are not always capable of creating optimal combinations of these characteristics, whereas greater durability can be achieved by applying mechanical pre-treatments prior to the coating. In this work, a combination of shot-peening pre-treatment with plasma electrolytic oxidation coating is studied as a means to improve the fatigue performance of 2024 T351 Al alloy. The shot-peening was carried out in a compressed air configuration using S110 gauge shot at 200% coverage with an intensity of 20 AlmenC. PEO coatings of 30 μm thickness were produced using pulsed bipolar current technology. Fatigue properties were evaluated by a four-point bending technique at a stress ratio of 0.1. Hardness, residual stress and microstructure of the surface layers were studied by Knoop microhardness tests, fluorescence spectroscopy and SEM analyses, respectively. The effect of the combined shot-peening and PEO treatment is an increased fatigue limit and elevated microhardness when compared to aluminium treated only with PEO.</description><subject>Aluminium</subject><subject>Aluminium oxide</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Exact sciences and technology</subject><subject>Mechanical and acoustical properties</subject><subject>Physical properties of thin films, nonelectronic</subject><subject>Physics</subject><subject>Physics of gases, plasmas and electric discharges</subject><subject>Physics of plasmas and electric discharges</subject><subject>Plasma applications</subject><subject>Plasma electrolytic oxidation (PEO)</subject><subject>Raman scattering</subject><subject>Residual stress</subject><subject>Shot-peening, fatigue</subject><subject>Structure and morphology; thickness</subject><subject>Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties)</subject><subject>Thin film structure and morphology</subject><issn>0040-6090</issn><issn>1879-2731</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqNkc1q3DAUhUVJoZO0D9CdNsnOztVPLZmswjBJA4EptF0LWbpKNNjyRPIE5m36LH2yeDqB7EJXd_Odc-C7hHxlUDNgzeWmnkqoOUBTg6oZFx_IgmnVVlwJdkIWABKqBlr4RE5L2QAA41wsyM9VCOgmOgbqxqGLCT0tj-NUbRFTTA_UJk9_rNZ0yminAdOMJhrsFB92SPsY8BDlwOXfP9c9tX0_7j-Tj8H2Bb-83jPy-2b1a_m9ul_f3i2v7ysndDtVHYAPCMFqoWyQ2qLuZOMdY4IHAQGUQ9Vx5UMnFejWc8msl0EL6b4p3ogzcnHs3ebxaYdlMkMsDvveJhx3xfCWy1YD_A_IG_mvkR1Bl8dSMgazzXGweW8YmINnszGzZ3PwbECZ2fOcOX8tt8XZPmSbXCxvQS1n7a2euasjh7OS54jZFBcxOfQxzx8wfozvrLwApgeR4w</recordid><startdate>20061123</startdate><enddate>20061123</enddate><creator>Asquith, D.T.</creator><creator>Yerokhin, A.L.</creator><creator>Yates, J.R.</creator><creator>Matthews, A.</creator><general>Elsevier B.V</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>7QF</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20061123</creationdate><title>Effect of combined shot-peening and PEO treatment on fatigue life of 2024 Al alloy</title><author>Asquith, D.T. ; Yerokhin, A.L. ; Yates, J.R. ; Matthews, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c389t-b00dfe0fa837af48ae8b46dc1132f30f07ce7b27dfb47089d241ad4f834c57263</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Aluminium</topic><topic>Aluminium oxide</topic><topic>Condensed matter: structure, mechanical and thermal properties</topic><topic>Exact sciences and technology</topic><topic>Mechanical and acoustical properties</topic><topic>Physical properties of thin films, nonelectronic</topic><topic>Physics</topic><topic>Physics of gases, plasmas and electric discharges</topic><topic>Physics of plasmas and electric discharges</topic><topic>Plasma applications</topic><topic>Plasma electrolytic oxidation (PEO)</topic><topic>Raman scattering</topic><topic>Residual stress</topic><topic>Shot-peening, fatigue</topic><topic>Structure and morphology; thickness</topic><topic>Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties)</topic><topic>Thin film structure and morphology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Asquith, D.T.</creatorcontrib><creatorcontrib>Yerokhin, A.L.</creatorcontrib><creatorcontrib>Yates, J.R.</creatorcontrib><creatorcontrib>Matthews, A.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aluminium Industry Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Thin solid films</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Asquith, D.T.</au><au>Yerokhin, A.L.</au><au>Yates, J.R.</au><au>Matthews, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of combined shot-peening and PEO treatment on fatigue life of 2024 Al alloy</atitle><jtitle>Thin solid films</jtitle><date>2006-11-23</date><risdate>2006</risdate><volume>515</volume><issue>3</issue><spage>1187</spage><epage>1191</epage><pages>1187-1191</pages><issn>0040-6090</issn><eissn>1879-2731</eissn><coden>THSFAP</coden><abstract>One of the most important objectives in the surface engineering of light-weight alloys is to enhance their fatigue properties, allowing both increased performance and an extended service life. This can be achieved by forming a hard surface layer while incorporating a favourable stress state. Single surface treatments, for example, Plasma Electrolytic Oxidation (PEO), are not always capable of creating optimal combinations of these characteristics, whereas greater durability can be achieved by applying mechanical pre-treatments prior to the coating. In this work, a combination of shot-peening pre-treatment with plasma electrolytic oxidation coating is studied as a means to improve the fatigue performance of 2024 T351 Al alloy. The shot-peening was carried out in a compressed air configuration using S110 gauge shot at 200% coverage with an intensity of 20 AlmenC. PEO coatings of 30 μm thickness were produced using pulsed bipolar current technology. Fatigue properties were evaluated by a four-point bending technique at a stress ratio of 0.1. Hardness, residual stress and microstructure of the surface layers were studied by Knoop microhardness tests, fluorescence spectroscopy and SEM analyses, respectively. The effect of the combined shot-peening and PEO treatment is an increased fatigue limit and elevated microhardness when compared to aluminium treated only with PEO.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.tsf.2006.07.123</doi><tpages>5</tpages></addata></record> |
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| subjects | Aluminium Aluminium oxide Condensed matter: structure, mechanical and thermal properties Exact sciences and technology Mechanical and acoustical properties Physical properties of thin films, nonelectronic Physics Physics of gases, plasmas and electric discharges Physics of plasmas and electric discharges Plasma applications Plasma electrolytic oxidation (PEO) Raman scattering Residual stress Shot-peening, fatigue Structure and morphology thickness Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties) Thin film structure and morphology |
| title | Effect of combined shot-peening and PEO treatment on fatigue life of 2024 Al alloy |
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