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Development of fatigue crack healing in metals by controlling high-density electric current field and its evaluation

Development of fatigue crack healing in metals by controlling high-density electric current field and its evaluation
控制高密度电流场金属疲劳裂纹愈合研究进展及评价
批准号:
21760072
负责人:
HOSOI Atsushi
金额:
$2.91万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Young Scientists (B)
财政年份:
2009
资助国家:
日本
项目状态:
已结题
起止时间:
2009 至 2010

项目摘要

项目成果

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相关文献

中文摘要
翻译
提出了一种通过控制高密度电流场来修复不锈钢疲劳裂纹的方法。从实验结果中,它被观察到的裂纹闭合和裂纹表面之间的桥接引起周围的裂纹尖端附近的高密度脉冲电流施加到试样后。结果表明,裂纹扩展暂时延迟愈合试样。此外,通过去除氧化膜和在裂纹表面涂覆防止再氧化的金属保护膜,促进了裂纹的闭合和桥接,并通过施加电流使分支小裂纹完全愈合。
英文摘要
A technique was developed to heal a fatigue crack in stainless steel by controlling a high-density electric current field. From the experimental results, it was observed that the crack closure and the bridging between the surfaces of a crack were caused around the vicinity of the crack tip after high density pulse current was applied to a specimen. It was shown that crack propagation was delayed temporarily in the healed specimen. Moreover, by removing oxide membrane and coating the metal protection film for preventing re-oxidation on the crack surfaces, the crack closure and the bridging were promoted, and the branched small crack was healed completely by application of current.
期刊论文(0)
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科研奖励(0)
会议论文
DOI: --
发表时间: 2010
期刊: Proceedings of ASME 2010 International Mechanical Engineering Congress & Exposition in CD-ROM.
影响因子: --
作者: [A.Hosoi, T.Nagahama, Y.Ju]
通讯作者: Y.Ju
高密度電流場形成によるステンレス鋼の疲労き裂閉口及び進展挙動に及ぼす影響
高密度电流场形成对不锈钢疲劳裂纹闭合和扩展行为的影响
DOI: --
发表时间: 2010
期刊:
影响因子: --
作者: [嶋田隆広, 石井義之, 北村隆行, 長濱孝胤]
通讯作者: 長濱孝胤
DOI: --
发表时间:
期刊:
影响因子: --
作者: []
通讯作者:
DOI: --
发表时间: 2010
期刊: Proceedings of ASME International Mechanical Engineering Congress & Exposition
影响因子: --
作者: [A.Hosoi, T.Nagahama, Y.Ju]
通讯作者: Y.Ju
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