Life prediction under tension of titanium alloys that develop an oxygenated brittle case during use
► We model the life prediction of alpha + beta titanium alloys. ► Experiments include tensile tests after exposure to air at temperature. ► Minimum stress to initiate crack and saturation spacing modeled and validated. ► Oxygen diffusion model used to predict degradation depth. ► A life prediction f...
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| Veröffentlicht in: | Scripta materialia 2011-09, Vol.65 (5), p.420-423 |
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| container_title | Scripta materialia |
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| creator | Parthasarathy, T.A. Porter, W.J. Boone, S. John, R. Martin, P. |
| description | ► We model the life prediction of alpha
+
beta titanium alloys. ► Experiments include tensile tests after exposure to air at temperature. ► Minimum stress to initiate crack and saturation spacing modeled and validated. ► Oxygen diffusion model used to predict degradation depth. ► A life prediction framework for arbitrary time–temperature–oxygen history suggested.
A simple model was used to predict the tendency of an (α
+
β) titanium alloy to crack under tension after exposure to air at temperature. The model was experimentally validated for minimum stress to crack and saturation crack spacing. A diffusion model for oxygen ingress as a function of time, temperature and oxygen partial pressure is outlined; together with the surface cracking model and empirical crack growth models, this enables the framework for a life prediction tool for arbitrary time–temperature–environment history. |
| doi_str_mv | 10.1016/j.scriptamat.2011.05.025 |
| format | Article |
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+
beta titanium alloys. ► Experiments include tensile tests after exposure to air at temperature. ► Minimum stress to initiate crack and saturation spacing modeled and validated. ► Oxygen diffusion model used to predict degradation depth. ► A life prediction framework for arbitrary time–temperature–oxygen history suggested.
A simple model was used to predict the tendency of an (α
+
β) titanium alloy to crack under tension after exposure to air at temperature. The model was experimentally validated for minimum stress to crack and saturation crack spacing. A diffusion model for oxygen ingress as a function of time, temperature and oxygen partial pressure is outlined; together with the surface cracking model and empirical crack growth models, this enables the framework for a life prediction tool for arbitrary time–temperature–environment history.</description><identifier>ISSN: 1359-6462</identifier><identifier>EISSN: 1872-8456</identifier><identifier>DOI: 10.1016/j.scriptamat.2011.05.025</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Alpha case ; Brittle case ; Crack propagation ; Cracks ; Fracture mechanics ; Life prediction ; Mathematical models ; Oxygen ; Oxygenated ; Titanium ; Titanium base alloys</subject><ispartof>Scripta materialia, 2011-09, Vol.65 (5), p.420-423</ispartof><rights>2011 Acta Materialia Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c350t-b0dad8e7fb516b4aef2824c98fb1675e92493feda25e86b03d71e6f4b743f2233</citedby><cites>FETCH-LOGICAL-c350t-b0dad8e7fb516b4aef2824c98fb1675e92493feda25e86b03d71e6f4b743f2233</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.scriptamat.2011.05.025$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27929,27930,46000</link.rule.ids></links><search><creatorcontrib>Parthasarathy, T.A.</creatorcontrib><creatorcontrib>Porter, W.J.</creatorcontrib><creatorcontrib>Boone, S.</creatorcontrib><creatorcontrib>John, R.</creatorcontrib><creatorcontrib>Martin, P.</creatorcontrib><title>Life prediction under tension of titanium alloys that develop an oxygenated brittle case during use</title><title>Scripta materialia</title><description>► We model the life prediction of alpha
+
beta titanium alloys. ► Experiments include tensile tests after exposure to air at temperature. ► Minimum stress to initiate crack and saturation spacing modeled and validated. ► Oxygen diffusion model used to predict degradation depth. ► A life prediction framework for arbitrary time–temperature–oxygen history suggested.
A simple model was used to predict the tendency of an (α
+
β) titanium alloy to crack under tension after exposure to air at temperature. The model was experimentally validated for minimum stress to crack and saturation crack spacing. A diffusion model for oxygen ingress as a function of time, temperature and oxygen partial pressure is outlined; together with the surface cracking model and empirical crack growth models, this enables the framework for a life prediction tool for arbitrary time–temperature–environment history.</description><subject>Alpha case</subject><subject>Brittle case</subject><subject>Crack propagation</subject><subject>Cracks</subject><subject>Fracture mechanics</subject><subject>Life prediction</subject><subject>Mathematical models</subject><subject>Oxygen</subject><subject>Oxygenated</subject><subject>Titanium</subject><subject>Titanium base alloys</subject><issn>1359-6462</issn><issn>1872-8456</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LxDAQhoMouK7-h9w8tSZpk6ZHXfyCBS96DmkyWbN0m5qki_vv7bKCR08zA8_7wjwIYUpKSqi425bJRD9mvdO5ZITSkvCSMH6GFlQ2rJA1F-fzXvG2ELVgl-gqpS0hRFBGF8isvQM8RrDeZB8GPA0WIs4wpOMVHM4-68FPO6z7PhwSzp86Ywt76MOI9Yx8HzYw6AwWd9Hn3AM2OgG2U_TDBk8JrtGF032Cm9-5RB9Pj--rl2L99vy6ul8XpuIkFx2x2kpoXMep6GoNjklWm1a6joqGQ8vqtnJgNeMgRUcq21AQru6aunKMVdUS3Z56xxi-JkhZ7Xwy0Pd6gDAlJVvBak6ZmEl5Ik0MKUVwaox-p-NBUaKOWtVW_WlVR62KcDVrnaMPpyjMn-w9xBn0MJhZYASTlQ3-_5IfhlqIog</recordid><startdate>20110901</startdate><enddate>20110901</enddate><creator>Parthasarathy, T.A.</creator><creator>Porter, W.J.</creator><creator>Boone, S.</creator><creator>John, R.</creator><creator>Martin, P.</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20110901</creationdate><title>Life prediction under tension of titanium alloys that develop an oxygenated brittle case during use</title><author>Parthasarathy, T.A. ; Porter, W.J. ; Boone, S. ; John, R. ; Martin, P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c350t-b0dad8e7fb516b4aef2824c98fb1675e92493feda25e86b03d71e6f4b743f2233</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Alpha case</topic><topic>Brittle case</topic><topic>Crack propagation</topic><topic>Cracks</topic><topic>Fracture mechanics</topic><topic>Life prediction</topic><topic>Mathematical models</topic><topic>Oxygen</topic><topic>Oxygenated</topic><topic>Titanium</topic><topic>Titanium base alloys</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Parthasarathy, T.A.</creatorcontrib><creatorcontrib>Porter, W.J.</creatorcontrib><creatorcontrib>Boone, S.</creatorcontrib><creatorcontrib>John, R.</creatorcontrib><creatorcontrib>Martin, P.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Scripta materialia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Parthasarathy, T.A.</au><au>Porter, W.J.</au><au>Boone, S.</au><au>John, R.</au><au>Martin, P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Life prediction under tension of titanium alloys that develop an oxygenated brittle case during use</atitle><jtitle>Scripta materialia</jtitle><date>2011-09-01</date><risdate>2011</risdate><volume>65</volume><issue>5</issue><spage>420</spage><epage>423</epage><pages>420-423</pages><issn>1359-6462</issn><eissn>1872-8456</eissn><abstract>► We model the life prediction of alpha
+
beta titanium alloys. ► Experiments include tensile tests after exposure to air at temperature. ► Minimum stress to initiate crack and saturation spacing modeled and validated. ► Oxygen diffusion model used to predict degradation depth. ► A life prediction framework for arbitrary time–temperature–oxygen history suggested.
A simple model was used to predict the tendency of an (α
+
β) titanium alloy to crack under tension after exposure to air at temperature. The model was experimentally validated for minimum stress to crack and saturation crack spacing. A diffusion model for oxygen ingress as a function of time, temperature and oxygen partial pressure is outlined; together with the surface cracking model and empirical crack growth models, this enables the framework for a life prediction tool for arbitrary time–temperature–environment history.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.scriptamat.2011.05.025</doi><tpages>4</tpages></addata></record> |
| fulltext | fulltext |
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| ispartof | Scripta materialia, 2011-09, Vol.65 (5), p.420-423 |
| issn | 1359-6462 1872-8456 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_896245126 |
| source | Elsevier ScienceDirect Journals Complete |
| subjects | Alpha case Brittle case Crack propagation Cracks Fracture mechanics Life prediction Mathematical models Oxygen Oxygenated Titanium Titanium base alloys |
| title | Life prediction under tension of titanium alloys that develop an oxygenated brittle case during use |
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