An unified understanding of the initial interior crack growth mechanism in very high cycle fatigue
An unified understanding of the initial interior crack growth mechanism in very high cycle fatigue
批准号:
18360051
负责人:
NAKAMURA Takashi
金额:
$6.06万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (B)
财政年份:
2006
资助国家:
日本
项目状态:
已结题
起止时间:
2006 至 2008
中文摘要
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英文摘要
超高サイクル疲労の原因である内部起点型破壊において, き裂の初期伝播過程で生じる微細な凹凸状破面(粒状破面)の形成機構を明らかにすることを目的とした. 「粒状破面は, 気体成分の吸着が著しく少ない内部き裂の伝播過程において, き裂新生面が長期間繰返し接触をすることで形成される」という仮説を提案し, 新たに開発した超高真空疲労試験機を用いて, 種々の真空圧力や応力比の下で得られた疲労破面を解析することにより, その検証を試みた. その結果, 内部起点型疲労破壊を生じるチタン合金および高強度鋼において, 上記の仮説が検証され, 内部き裂伝播に及ぼす影響因子が明らかにされた.
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SNCM439の内部起点型疲労特性に及ぼす焼もどし温度の影響
回火温度对SNCM439内部疲劳性能的影响
DOI:
--
发表时间:
2008
期刊:
日本機械学会2008年度年次大会講演論文集(6) No.08-1
影响因子:
--
作者:
[池田慎太郎, 中村孝, 小熊博幸, 中村謙介]
通讯作者:
中村謙介
Effects of vacuum like environment around interior crack on gigacycle fatigue properties
内部裂纹周围的类真空环境对千兆循环疲劳性能的影响
DOI:
--
发表时间:
2008
期刊:
Proceedings of the Materials Science & Technology 2008 Conference MS&T'08(CD-ROM)
影响因子:
--
作者:
[Nakamura T., Oguma H.]
通讯作者:
Oguma H.
Ti-6Al-4V合金における超高サイクル疲労特性の組織依存性
Ti-6Al-4V 合金超高周疲劳性能的微观结构依赖性
DOI:
--
发表时间:
2008
期刊:
日本機械学会M&M2008材料力学カンファレンス講演論文集 (CD-ROM)
影响因子:
--
作者:
[小熊博幸, 中村孝]
通讯作者:
中村孝
微小き裂の△Kthに及ぼす真空環境の影響
真空环境对微裂纹△Kth的影响
DOI:
--
发表时间:
2008
期刊:
日本機械学会M&M2008材料力学カンファレンス講演論文集 (CD-ROM)
影响因子:
--
作者:
[中村孝, 小熊博幸]
通讯作者:
小熊博幸
Ti-6AI-4V合金における超高サイクル疲労特性の組織依存性
Ti-6AI-4V 合金超高周疲劳性能的微观结构依赖性
DOI:
--
发表时间:
2008
期刊:
日本機械学会M&M2008材料力学カンファレンス講演論文集 (CD-ROM)
影响因子:
--
作者:
[小熊博幸, 中村孝]
通讯作者:
中村孝
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