Effect of microstructure on ultra-high cycle fatigue behavior of Ti–6Al–4V
The fatigue behavior of Ti–6Al–4V alloy with the bimodal and basketweave microstructures has been investigated. The results show that the S– N curves of Ti–6Al–4V with both microstructures continuously decrease with increasing the number of cycles to failure and have no horizontal asymptote in the r...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2008-01, Vol.473 (1), p.147-152 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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| creator | Zuo, J.H. Wang, Z.G. Han, E.H. |
| description | The fatigue behavior of Ti–6Al–4V alloy with the bimodal and basketweave microstructures has been investigated. The results show that the
S–
N curves of Ti–6Al–4V with both microstructures continuously decrease with increasing the number of cycles to failure and have no horizontal asymptote in the regime of 10
5 to 10
9 cycles. SEM observation of fracture surface indicates that the crack initiation sites abruptly shift from surface to interior of the specimen with decreasing the stress amplitude. It is found that the surface crack initiation mainly results from the machining traces. Nevertheless, most of the internal fatigue cracks initiate in the border region of primary α-grains in bimodal microstructure or at α–β interfaces in basketweave microstructure, which induced by inhomogeneity of microstructures and incompatibility of deformation between two phases. The size of the internal crack initiation site was evaluated and the dependence of the fatigue life on the location and size of the initiation sites is discussed. |
| doi_str_mv | 10.1016/j.msea.2007.04.062 |
| format | Article |
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S–
N curves of Ti–6Al–4V with both microstructures continuously decrease with increasing the number of cycles to failure and have no horizontal asymptote in the regime of 10
5 to 10
9 cycles. SEM observation of fracture surface indicates that the crack initiation sites abruptly shift from surface to interior of the specimen with decreasing the stress amplitude. It is found that the surface crack initiation mainly results from the machining traces. Nevertheless, most of the internal fatigue cracks initiate in the border region of primary α-grains in bimodal microstructure or at α–β interfaces in basketweave microstructure, which induced by inhomogeneity of microstructures and incompatibility of deformation between two phases. The size of the internal crack initiation site was evaluated and the dependence of the fatigue life on the location and size of the initiation sites is discussed.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2007.04.062</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Applied sciences ; Crack initiation ; Exact sciences and technology ; Fatigue ; Fractures ; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology ; Metals. Metallurgy ; Microstructure ; Ti–6Al–4V alloy ; Ultra-high cycle fatigue</subject><ispartof>Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2008-01, Vol.473 (1), p.147-152</ispartof><rights>2007 Elsevier B.V.</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c427t-e3599601eb0fbc844c4fcee603353b5432d92aace2235e2ab4a438b6a7eddaec3</citedby><cites>FETCH-LOGICAL-c427t-e3599601eb0fbc844c4fcee603353b5432d92aace2235e2ab4a438b6a7eddaec3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.msea.2007.04.062$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27929,27930,46000</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20021519$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Zuo, J.H.</creatorcontrib><creatorcontrib>Wang, Z.G.</creatorcontrib><creatorcontrib>Han, E.H.</creatorcontrib><title>Effect of microstructure on ultra-high cycle fatigue behavior of Ti–6Al–4V</title><title>Materials science & engineering. A, Structural materials : properties, microstructure and processing</title><description>The fatigue behavior of Ti–6Al–4V alloy with the bimodal and basketweave microstructures has been investigated. The results show that the
S–
N curves of Ti–6Al–4V with both microstructures continuously decrease with increasing the number of cycles to failure and have no horizontal asymptote in the regime of 10
5 to 10
9 cycles. SEM observation of fracture surface indicates that the crack initiation sites abruptly shift from surface to interior of the specimen with decreasing the stress amplitude. It is found that the surface crack initiation mainly results from the machining traces. Nevertheless, most of the internal fatigue cracks initiate in the border region of primary α-grains in bimodal microstructure or at α–β interfaces in basketweave microstructure, which induced by inhomogeneity of microstructures and incompatibility of deformation between two phases. The size of the internal crack initiation site was evaluated and the dependence of the fatigue life on the location and size of the initiation sites is discussed.</description><subject>Applied sciences</subject><subject>Crack initiation</subject><subject>Exact sciences and technology</subject><subject>Fatigue</subject><subject>Fractures</subject><subject>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</subject><subject>Metals. Metallurgy</subject><subject>Microstructure</subject><subject>Ti–6Al–4V alloy</subject><subject>Ultra-high cycle fatigue</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp9kMtOwzAQRS0EEqXwA6yygV3C-JGkkdhUVXlIFWwKW8txxq2rpCl2Uqk7_oE_5EtwVMSSzczm3DuaQ8g1hYQCze42SeNRJQwgT0AkkLETMqKTnMei4NkpGUHBaJxCwc_JhfcbAKAC0hF5mRuDuotaEzVWu9Z3rtdd7zBqt1Ffd07Fa7taR_qga4yM6uyqx6jEtdrb1g2xpf3-_MqmdZji_ZKcGVV7vPrdY_L2MF_OnuLF6-PzbLqItWB5FyNPiyIDiiWYUk-E0MJoxAw4T3mZCs6qgimlkTGeIlOlUIJPykzlWFUKNR-T22PvzrUfPfpONtZrrGu1xbb3ktM8E4ylAWRHcPjNOzRy52yj3EFSkIM6uZGDOjmokyBkUBdCN7_tymtVG6e22vq_ZEAZTWkRuPsjh-HVvUUnvba41VhZF6TKqrX_nfkBGB-Ghw</recordid><startdate>20080125</startdate><enddate>20080125</enddate><creator>Zuo, J.H.</creator><creator>Wang, Z.G.</creator><creator>Han, E.H.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SE</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20080125</creationdate><title>Effect of microstructure on ultra-high cycle fatigue behavior of Ti–6Al–4V</title><author>Zuo, J.H. ; Wang, Z.G. ; Han, E.H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c427t-e3599601eb0fbc844c4fcee603353b5432d92aace2235e2ab4a438b6a7eddaec3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Applied sciences</topic><topic>Crack initiation</topic><topic>Exact sciences and technology</topic><topic>Fatigue</topic><topic>Fractures</topic><topic>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</topic><topic>Metals. Metallurgy</topic><topic>Microstructure</topic><topic>Ti–6Al–4V alloy</topic><topic>Ultra-high cycle fatigue</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zuo, J.H.</creatorcontrib><creatorcontrib>Wang, Z.G.</creatorcontrib><creatorcontrib>Han, E.H.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Corrosion Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zuo, J.H.</au><au>Wang, Z.G.</au><au>Han, E.H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of microstructure on ultra-high cycle fatigue behavior of Ti–6Al–4V</atitle><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle><date>2008-01-25</date><risdate>2008</risdate><volume>473</volume><issue>1</issue><spage>147</spage><epage>152</epage><pages>147-152</pages><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>The fatigue behavior of Ti–6Al–4V alloy with the bimodal and basketweave microstructures has been investigated. The results show that the
S–
N curves of Ti–6Al–4V with both microstructures continuously decrease with increasing the number of cycles to failure and have no horizontal asymptote in the regime of 10
5 to 10
9 cycles. SEM observation of fracture surface indicates that the crack initiation sites abruptly shift from surface to interior of the specimen with decreasing the stress amplitude. It is found that the surface crack initiation mainly results from the machining traces. Nevertheless, most of the internal fatigue cracks initiate in the border region of primary α-grains in bimodal microstructure or at α–β interfaces in basketweave microstructure, which induced by inhomogeneity of microstructures and incompatibility of deformation between two phases. The size of the internal crack initiation site was evaluated and the dependence of the fatigue life on the location and size of the initiation sites is discussed.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2007.04.062</doi><tpages>6</tpages></addata></record> |
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| ispartof | Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2008-01, Vol.473 (1), p.147-152 |
| issn | 0921-5093 1873-4936 |
| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Applied sciences Crack initiation Exact sciences and technology Fatigue Fractures Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Microstructure Ti–6Al–4V alloy Ultra-high cycle fatigue |
| title | Effect of microstructure on ultra-high cycle fatigue behavior of Ti–6Al–4V |
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