Effect of Shot Peening on Fatigue Strength of Ti-6Al-4V Alloy at Elevated Temperatures
(1) The fatigue strength of the unpeened specimens of Ti-6Al-4V alloy was found to be 490MPa, 430MPa, 410MPa and 440MPa at 20°C, 250°C, 350°C and 450°C, respectively. The respective values for the shot peened specimens were 620MPa, 520MPa, 440MPa and 260MPa. The fatigue strength was definitely incre...
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| Veröffentlicht in: | Journal of the Society of Materials Science, Japan Japan, 1996/01/15, Vol.45(1), pp.43-47 |
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| container_title | Journal of the Society of Materials Science, Japan |
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| creator | KATO, Yozo TAKAFUJI, Shinzaburo KIRIYAMA, Masaki |
| description | (1) The fatigue strength of the unpeened specimens of Ti-6Al-4V alloy was found to be 490MPa, 430MPa, 410MPa and 440MPa at 20°C, 250°C, 350°C and 450°C, respectively. The respective values for the shot peened specimens were 620MPa, 520MPa, 440MPa and 260MPa. The fatigue strength was definitely increased by shot peening at 20°C, 250°C and 350°C, and the increments were about 27%, 21% and 7%, respectively. The fatigue strength, however, was remarkably decreased by shot peening at 450°C, and its decrement reached about 41%. (2) The fatigue strength of the specimen shot-peened and then electro-polished was 470MPa at 450°C. The fatigue strength greatly increased from 260MPa to 470MPa after polishing. The value of 470MPa is comparable to 460MPa of the fatigue strength of the unpeened specimen. The decrease in fatigue strength due to shot peening at 450°C may be explained as follows. The compressive residual stress in the near-surface region induced by shot peening disappear during fatigue cycling at 450°C, but the great surface roughness due to shot peening still remains, which reduce the fatigue strength of the shot peened specimen. |
| doi_str_mv | 10.2472/jsms.45.43 |
| format | Article |
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The respective values for the shot peened specimens were 620MPa, 520MPa, 440MPa and 260MPa. The fatigue strength was definitely increased by shot peening at 20°C, 250°C and 350°C, and the increments were about 27%, 21% and 7%, respectively. The fatigue strength, however, was remarkably decreased by shot peening at 450°C, and its decrement reached about 41%. (2) The fatigue strength of the specimen shot-peened and then electro-polished was 470MPa at 450°C. The fatigue strength greatly increased from 260MPa to 470MPa after polishing. The value of 470MPa is comparable to 460MPa of the fatigue strength of the unpeened specimen. The decrease in fatigue strength due to shot peening at 450°C may be explained as follows. The compressive residual stress in the near-surface region induced by shot peening disappear during fatigue cycling at 450°C, but the great surface roughness due to shot peening still remains, which reduce the fatigue strength of the shot peened specimen.</description><identifier>ISSN: 0514-5163</identifier><identifier>EISSN: 1880-7488</identifier><identifier>DOI: 10.2472/jsms.45.43</identifier><language>jpn</language><publisher>The Society of Materials Science, Japan</publisher><subject>Elevated temperatures ; Fatigue strength ; Residual stress ; Shot peening ; Ti-6Al-4V alloy</subject><ispartof>Journal of the Society of Materials Science, Japan, 1996/01/15, Vol.45(1), pp.43-47</ispartof><rights>by The Society of Materials Science, Japan</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3593-f513ea258a5db58fdc4b4b3f663e7375f300e5fddf9f5505e3db5d15beec1a3e3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,1877,4010,27900,27901,27902</link.rule.ids></links><search><creatorcontrib>KATO, Yozo</creatorcontrib><creatorcontrib>TAKAFUJI, Shinzaburo</creatorcontrib><creatorcontrib>KIRIYAMA, Masaki</creatorcontrib><title>Effect of Shot Peening on Fatigue Strength of Ti-6Al-4V Alloy at Elevated Temperatures</title><title>Journal of the Society of Materials Science, Japan</title><addtitle>J. Soc. Mat. Sci., Japan</addtitle><description>(1) The fatigue strength of the unpeened specimens of Ti-6Al-4V alloy was found to be 490MPa, 430MPa, 410MPa and 440MPa at 20°C, 250°C, 350°C and 450°C, respectively. The respective values for the shot peened specimens were 620MPa, 520MPa, 440MPa and 260MPa. The fatigue strength was definitely increased by shot peening at 20°C, 250°C and 350°C, and the increments were about 27%, 21% and 7%, respectively. The fatigue strength, however, was remarkably decreased by shot peening at 450°C, and its decrement reached about 41%. (2) The fatigue strength of the specimen shot-peened and then electro-polished was 470MPa at 450°C. The fatigue strength greatly increased from 260MPa to 470MPa after polishing. The value of 470MPa is comparable to 460MPa of the fatigue strength of the unpeened specimen. The decrease in fatigue strength due to shot peening at 450°C may be explained as follows. The compressive residual stress in the near-surface region induced by shot peening disappear during fatigue cycling at 450°C, but the great surface roughness due to shot peening still remains, which reduce the fatigue strength of the shot peened specimen.</description><subject>Elevated temperatures</subject><subject>Fatigue strength</subject><subject>Residual stress</subject><subject>Shot peening</subject><subject>Ti-6Al-4V alloy</subject><issn>0514-5163</issn><issn>1880-7488</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><recordid>eNqN0DtrwzAUBWBRWmhIs_QXaOpQcCr5Sn6MISRtIdBC0qxCtq8cBz9SSS7k3zduQuYu5w7n4w6HkEfOpqGIw5e9a9xUyKmAGzLiScKCWCTJLRkxyUUgeQT3ZOJclTEWhiEkIh2R7cIYzD3tDF3vOk8_EduqLWnX0qX2VdkjXXuLbel3g9lUQTSrA7Gls7rujlR7uqjxR3ss6AabA1rte4vugdwZXTucXO6YfC0Xm_lbsPp4fZ_PVkEOMoXASA6oQ5loWWQyMUUuMpGBiSLAGGJpgDGUpihMaqRkEuHECi4zxJxrQBiTp_Pfg-2-e3ReNZXLsa51i13vVBhxHkvG_wV5EoUn-HyGue2cs2jUwVaNtkfFmRpmVsPMSkgl4ITnZ7x3Xpd4pdr6Kq_xj_I0goHzS8C1zXfaKmzhFwZYiB0</recordid><startdate>1996</startdate><enddate>1996</enddate><creator>KATO, Yozo</creator><creator>TAKAFUJI, Shinzaburo</creator><creator>KIRIYAMA, Masaki</creator><general>The Society of Materials Science, Japan</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>8BQ</scope><scope>JG9</scope></search><sort><creationdate>1996</creationdate><title>Effect of Shot Peening on Fatigue Strength of Ti-6Al-4V Alloy at Elevated Temperatures</title><author>KATO, Yozo ; TAKAFUJI, Shinzaburo ; KIRIYAMA, Masaki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3593-f513ea258a5db58fdc4b4b3f663e7375f300e5fddf9f5505e3db5d15beec1a3e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>jpn</language><creationdate>1996</creationdate><topic>Elevated temperatures</topic><topic>Fatigue strength</topic><topic>Residual stress</topic><topic>Shot peening</topic><topic>Ti-6Al-4V alloy</topic><toplevel>online_resources</toplevel><creatorcontrib>KATO, Yozo</creatorcontrib><creatorcontrib>TAKAFUJI, Shinzaburo</creatorcontrib><creatorcontrib>KIRIYAMA, Masaki</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>METADEX</collection><collection>Materials Research Database</collection><jtitle>Journal of the Society of Materials Science, Japan</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>KATO, Yozo</au><au>TAKAFUJI, Shinzaburo</au><au>KIRIYAMA, Masaki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of Shot Peening on Fatigue Strength of Ti-6Al-4V Alloy at Elevated Temperatures</atitle><jtitle>Journal of the Society of Materials Science, Japan</jtitle><addtitle>J. Soc. Mat. Sci., Japan</addtitle><date>1996</date><risdate>1996</risdate><volume>45</volume><issue>1</issue><spage>43</spage><epage>47</epage><pages>43-47</pages><issn>0514-5163</issn><eissn>1880-7488</eissn><abstract>(1) The fatigue strength of the unpeened specimens of Ti-6Al-4V alloy was found to be 490MPa, 430MPa, 410MPa and 440MPa at 20°C, 250°C, 350°C and 450°C, respectively. The respective values for the shot peened specimens were 620MPa, 520MPa, 440MPa and 260MPa. The fatigue strength was definitely increased by shot peening at 20°C, 250°C and 350°C, and the increments were about 27%, 21% and 7%, respectively. The fatigue strength, however, was remarkably decreased by shot peening at 450°C, and its decrement reached about 41%. (2) The fatigue strength of the specimen shot-peened and then electro-polished was 470MPa at 450°C. The fatigue strength greatly increased from 260MPa to 470MPa after polishing. The value of 470MPa is comparable to 460MPa of the fatigue strength of the unpeened specimen. The decrease in fatigue strength due to shot peening at 450°C may be explained as follows. The compressive residual stress in the near-surface region induced by shot peening disappear during fatigue cycling at 450°C, but the great surface roughness due to shot peening still remains, which reduce the fatigue strength of the shot peened specimen.</abstract><pub>The Society of Materials Science, Japan</pub><doi>10.2472/jsms.45.43</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Journal of the Society of Materials Science, Japan, 1996/01/15, Vol.45(1), pp.43-47 |
| issn | 0514-5163 1880-7488 |
| language | jpn |
| recordid | cdi_proquest_miscellaneous_26117501 |
| source | J-STAGE Free |
| subjects | Elevated temperatures Fatigue strength Residual stress Shot peening Ti-6Al-4V alloy |
| title | Effect of Shot Peening on Fatigue Strength of Ti-6Al-4V Alloy at Elevated Temperatures |
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