Effect of microtexture on fatigue cracking in Ti–6Al–4V
Fatigue cracking in forged bar, unidirectionally rolled (UD) and cross-rolled (XR) plate product forms of Ti–6Al–4V subjected to high cycle fatigue with a stress ratio R = 0.3 was studied by examination of crack tips using electron backscatter diffraction (EBSD) and transmission electron microscopy...
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| Veröffentlicht in: | Acta materialia 2007-09, Vol.55 (16), p.5655-5665 |
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| container_title | Acta materialia |
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| creator | Bantounas, Ioannis Lindley, Trevor C. Rugg, David Dye, David |
| description | Fatigue cracking in forged bar, unidirectionally rolled (UD) and cross-rolled (XR) plate product forms of Ti–6Al–4V subjected to high cycle fatigue with a stress ratio
R =
0.3 was studied by examination of crack tips using electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM). The bar and the UD materials were composed of macrozones 50–70
μm in width whereas the bands identified in the XR product were only a few grains thick (∼20
μm). The fatigue fracture surfaces observed were related to the macrozones in the underlying microstructure. EBSD analysis of the crack tips showed that cracks arrested when confronted by grains badly oriented for prismatic
{
1
0
1
¯
0
}
〈
1
1
2
¯
0
〉
slip in both the bar and the XR materials. TEM foils were obtained from both the forward crack tip plastic zone and from the plastic wake, which showed that 〈
c+a〉 slip operated in grains badly oriented for prismatic slip. |
| doi_str_mv | 10.1016/j.actamat.2007.06.034 |
| format | Article |
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R =
0.3 was studied by examination of crack tips using electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM). The bar and the UD materials were composed of macrozones 50–70
μm in width whereas the bands identified in the XR product were only a few grains thick (∼20
μm). The fatigue fracture surfaces observed were related to the macrozones in the underlying microstructure. EBSD analysis of the crack tips showed that cracks arrested when confronted by grains badly oriented for prismatic
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slip in both the bar and the XR materials. TEM foils were obtained from both the forward crack tip plastic zone and from the plastic wake, which showed that 〈
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R =
0.3 was studied by examination of crack tips using electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM). The bar and the UD materials were composed of macrozones 50–70
μm in width whereas the bands identified in the XR product were only a few grains thick (∼20
μm). The fatigue fracture surfaces observed were related to the macrozones in the underlying microstructure. EBSD analysis of the crack tips showed that cracks arrested when confronted by grains badly oriented for prismatic
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〉
slip in both the bar and the XR materials. TEM foils were obtained from both the forward crack tip plastic zone and from the plastic wake, which showed that 〈
c+a〉 slip operated in grains badly oriented for prismatic slip.</description><subject>Applied sciences</subject><subject>Crack tips</subject><subject>Electron back scatter diffraction</subject><subject>Electron backscatter diffraction (EBSD)</subject><subject>Exact sciences and technology</subject><subject>Fatigue</subject><subject>Fatigue failure</subject><subject>Fracture mechanics</subject><subject>Grains</subject><subject>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</subject><subject>Metals. Metallurgy</subject><subject>Slip</subject><subject>Texture</subject><subject>Titanium alloys</subject><subject>Titanium base alloys</subject><subject>Transmission electron microscopy</subject><subject>Transmission electron microscopy (TEM)</subject><issn>1359-6454</issn><issn>1873-2453</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNqFkM1Kw0AQx4MoWKuPIOSieEmc_UyCBymlfoDgpXpdppvdsjVN6m4qevMdfEOfxC0teNPLzBx-_xnmlySnBHICRF4uctQ9LrHPKUCRg8yB8b1kQMqCZZQLth9nJqpMcsEPk6MQFgCEFhwGydXEWqP7tLPp0mnf9ea9X3uTdm1qsXfztUm1R_3i2nnq2nTqvj-_5KiJlT8fJwcWm2BOdn2YPN1MpuO77OHx9n48esg0l1WfsZoBMmEJpxUActQlRUpLSWaccltjVXJGhDYzacoCZ5WWRc2QFVJWtZgRNkzOt3tXvntdm9CrpQvaNA22plsHxQBKwUQRwYs_QQIljYoiH1GxRePPIXhj1cq7JfqPCKmNVbVQO6tqY1WBVNFqzJ3tTmDQ2FiPrXbhN1wB37iN3PWWM1HMmzNeBe1Mq03tfPSt6s79c-kHqU6PUQ</recordid><startdate>20070901</startdate><enddate>20070901</enddate><creator>Bantounas, Ioannis</creator><creator>Lindley, Trevor C.</creator><creator>Rugg, David</creator><creator>Dye, David</creator><general>Elsevier Ltd</general><general>Elsevier Science</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>20070901</creationdate><title>Effect of microtexture on fatigue cracking in Ti–6Al–4V</title><author>Bantounas, Ioannis ; Lindley, Trevor C. ; Rugg, David ; Dye, David</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c469t-3d30a35f142900a4ac82a22861b424fda984315ceb6e87ab9c67d3a37669d5b13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Applied sciences</topic><topic>Crack tips</topic><topic>Electron back scatter diffraction</topic><topic>Electron backscatter diffraction (EBSD)</topic><topic>Exact sciences and technology</topic><topic>Fatigue</topic><topic>Fatigue failure</topic><topic>Fracture mechanics</topic><topic>Grains</topic><topic>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</topic><topic>Metals. Metallurgy</topic><topic>Slip</topic><topic>Texture</topic><topic>Titanium alloys</topic><topic>Titanium base alloys</topic><topic>Transmission electron microscopy</topic><topic>Transmission electron microscopy (TEM)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bantounas, Ioannis</creatorcontrib><creatorcontrib>Lindley, Trevor C.</creatorcontrib><creatorcontrib>Rugg, David</creatorcontrib><creatorcontrib>Dye, David</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>Acta materialia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bantounas, Ioannis</au><au>Lindley, Trevor C.</au><au>Rugg, David</au><au>Dye, David</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of microtexture on fatigue cracking in Ti–6Al–4V</atitle><jtitle>Acta materialia</jtitle><date>2007-09-01</date><risdate>2007</risdate><volume>55</volume><issue>16</issue><spage>5655</spage><epage>5665</epage><pages>5655-5665</pages><issn>1359-6454</issn><eissn>1873-2453</eissn><abstract>Fatigue cracking in forged bar, unidirectionally rolled (UD) and cross-rolled (XR) plate product forms of Ti–6Al–4V subjected to high cycle fatigue with a stress ratio
R =
0.3 was studied by examination of crack tips using electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM). The bar and the UD materials were composed of macrozones 50–70
μm in width whereas the bands identified in the XR product were only a few grains thick (∼20
μm). The fatigue fracture surfaces observed were related to the macrozones in the underlying microstructure. EBSD analysis of the crack tips showed that cracks arrested when confronted by grains badly oriented for prismatic
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〈
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1
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〉
slip in both the bar and the XR materials. TEM foils were obtained from both the forward crack tip plastic zone and from the plastic wake, which showed that 〈
c+a〉 slip operated in grains badly oriented for prismatic slip.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.actamat.2007.06.034</doi><tpages>11</tpages></addata></record> |
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| ispartof | Acta materialia, 2007-09, Vol.55 (16), p.5655-5665 |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Applied sciences Crack tips Electron back scatter diffraction Electron backscatter diffraction (EBSD) Exact sciences and technology Fatigue Fatigue failure Fracture mechanics Grains Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Slip Texture Titanium alloys Titanium base alloys Transmission electron microscopy Transmission electron microscopy (TEM) |
| title | Effect of microtexture on fatigue cracking in Ti–6Al–4V |
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