Low cycle fatigue behavior of casting A319 alloy under two different aging conditions
To determine the influence of peak- and over-aging on low-cycle fatigue (LCF) behavior of casting A319 alloy, the strain controlled low-cycle fatigue tests was studied at room temperature under different total strain amplitudes. At lower total strain amplitudes (0.2–0.3%), the A319 alloy presented i...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2016-01, Vol.654, p.60-68 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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| creator | Tian, D.D. Liu, X.S. He, G.Q. Shen, Y. Lv, S.Q. Wang, Q.G. |
| description | To determine the influence of peak- and over-aging on low-cycle fatigue (LCF) behavior of casting A319 alloy, the strain controlled low-cycle fatigue tests was studied at room temperature under different total strain amplitudes. At lower total strain amplitudes (0.2–0.3%), the A319 alloy presented initial cyclic hardening and then, steady stage and cyclic softening; while at higher total strain amplitudes (0.35–0.4%), it presented continuous hardening in the peak-aged specimens and constant softening in the over-aged specimens. At a given total strain amplitude, the hysteresis loops in the peak-aged specimens were relatively narrower than those in the over-aged specimens. The fatigue life of the peak-aged samples was higher than that of the over-aged samples at any given total strain amplitude. Fractographic morphology indicated that the size of the fatigue crack propagation zone at peak-aged condition was larger than that at over-aged treatment. The crack characteristic in the propagation region and the fast fracture zone also showed some differences between two aging conditions. |
| doi_str_mv | 10.1016/j.msea.2015.12.023 |
| format | Article |
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At lower total strain amplitudes (0.2–0.3%), the A319 alloy presented initial cyclic hardening and then, steady stage and cyclic softening; while at higher total strain amplitudes (0.35–0.4%), it presented continuous hardening in the peak-aged specimens and constant softening in the over-aged specimens. At a given total strain amplitude, the hysteresis loops in the peak-aged specimens were relatively narrower than those in the over-aged specimens. The fatigue life of the peak-aged samples was higher than that of the over-aged samples at any given total strain amplitude. Fractographic morphology indicated that the size of the fatigue crack propagation zone at peak-aged condition was larger than that at over-aged treatment. The crack characteristic in the propagation region and the fast fracture zone also showed some differences between two aging conditions.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2015.12.023</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>A319 aluminum alloy ; Aluminum base alloys ; Amplitudes ; Crack propagation ; Fatigue life ; Fracture mechanics ; Fracture morphology ; Hardening ; Low cycle fatigue ; Over-aging ; Peak-aging ; Softening ; Strain</subject><ispartof>Materials science & engineering. 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A, Structural materials : properties, microstructure and processing</title><description>To determine the influence of peak- and over-aging on low-cycle fatigue (LCF) behavior of casting A319 alloy, the strain controlled low-cycle fatigue tests was studied at room temperature under different total strain amplitudes. At lower total strain amplitudes (0.2–0.3%), the A319 alloy presented initial cyclic hardening and then, steady stage and cyclic softening; while at higher total strain amplitudes (0.35–0.4%), it presented continuous hardening in the peak-aged specimens and constant softening in the over-aged specimens. At a given total strain amplitude, the hysteresis loops in the peak-aged specimens were relatively narrower than those in the over-aged specimens. The fatigue life of the peak-aged samples was higher than that of the over-aged samples at any given total strain amplitude. Fractographic morphology indicated that the size of the fatigue crack propagation zone at peak-aged condition was larger than that at over-aged treatment. The crack characteristic in the propagation region and the fast fracture zone also showed some differences between two aging conditions.</description><subject>A319 aluminum alloy</subject><subject>Aluminum base alloys</subject><subject>Amplitudes</subject><subject>Crack propagation</subject><subject>Fatigue life</subject><subject>Fracture mechanics</subject><subject>Fracture morphology</subject><subject>Hardening</subject><subject>Low cycle fatigue</subject><subject>Over-aging</subject><subject>Peak-aging</subject><subject>Softening</subject><subject>Strain</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp9kD1PwzAURS0EEqXwB5g8siT4xY2bSCxVxZdUiYXOlvPyXFylcbGdov57UpWZ5b3l3Cvdw9g9iBwEqMdtvotk8kJAmUORi0JesAlUc5nNaqku2UTUBWSlqOU1u4lxK4SAmSgnbL3yPxyP2BG3JrnNQLyhL3NwPnBvOZqYXL_hCwk1N13nj3zoWwo8_XjeOmspUJ-42Zwg9H3rkvN9vGVX1nSR7v7-lK1fnj-Xb9nq4_V9uVhlKKVMGRlpsWyMKbGxAmsSdhxA2IJBkDBeUc_U3FSqNpawQrIVKjlySigDjZyyh3PvPvjvgWLSOxeRus705IeoYV4pKKFWMKLFGcXgYwxk9T64nQlHDUKfHOqtPjnUJ4caCj06HENP5xCNIw6Ogo7oqEdqXSBMuvXuv_gvVsp7pQ</recordid><startdate>20160127</startdate><enddate>20160127</enddate><creator>Tian, D.D.</creator><creator>Liu, X.S.</creator><creator>He, G.Q.</creator><creator>Shen, Y.</creator><creator>Lv, S.Q.</creator><creator>Wang, Q.G.</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20160127</creationdate><title>Low cycle fatigue behavior of casting A319 alloy under two different aging conditions</title><author>Tian, D.D. ; Liu, X.S. ; He, G.Q. ; Shen, Y. ; Lv, S.Q. ; Wang, Q.G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c333t-ea3fc5baa5cbf0c9e0f015ecd1ac1311ac09467a869afec8cef8c639e0606a1b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>A319 aluminum alloy</topic><topic>Aluminum base alloys</topic><topic>Amplitudes</topic><topic>Crack propagation</topic><topic>Fatigue life</topic><topic>Fracture mechanics</topic><topic>Fracture morphology</topic><topic>Hardening</topic><topic>Low cycle fatigue</topic><topic>Over-aging</topic><topic>Peak-aging</topic><topic>Softening</topic><topic>Strain</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tian, D.D.</creatorcontrib><creatorcontrib>Liu, X.S.</creatorcontrib><creatorcontrib>He, G.Q.</creatorcontrib><creatorcontrib>Shen, Y.</creatorcontrib><creatorcontrib>Lv, S.Q.</creatorcontrib><creatorcontrib>Wang, Q.G.</creatorcontrib><collection>CrossRef</collection><collection>Aluminium Industry 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>Tian, D.D.</au><au>Liu, X.S.</au><au>He, G.Q.</au><au>Shen, Y.</au><au>Lv, S.Q.</au><au>Wang, Q.G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Low cycle fatigue behavior of casting A319 alloy under two different aging conditions</atitle><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle><date>2016-01-27</date><risdate>2016</risdate><volume>654</volume><spage>60</spage><epage>68</epage><pages>60-68</pages><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>To determine the influence of peak- and over-aging on low-cycle fatigue (LCF) behavior of casting A319 alloy, the strain controlled low-cycle fatigue tests was studied at room temperature under different total strain amplitudes. At lower total strain amplitudes (0.2–0.3%), the A319 alloy presented initial cyclic hardening and then, steady stage and cyclic softening; while at higher total strain amplitudes (0.35–0.4%), it presented continuous hardening in the peak-aged specimens and constant softening in the over-aged specimens. At a given total strain amplitude, the hysteresis loops in the peak-aged specimens were relatively narrower than those in the over-aged specimens. The fatigue life of the peak-aged samples was higher than that of the over-aged samples at any given total strain amplitude. Fractographic morphology indicated that the size of the fatigue crack propagation zone at peak-aged condition was larger than that at over-aged treatment. The crack characteristic in the propagation region and the fast fracture zone also showed some differences between two aging conditions.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2015.12.023</doi><tpages>9</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | A319 aluminum alloy Aluminum base alloys Amplitudes Crack propagation Fatigue life Fracture mechanics Fracture morphology Hardening Low cycle fatigue Over-aging Peak-aging Softening Strain |
| title | Low cycle fatigue behavior of casting A319 alloy under two different aging conditions |
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