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
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
中文摘要
开发了一种通过控制高密度电磁场来修复不锈钢疲劳裂纹的技术。从实验结果可以看出,高密度脉冲电流作用于试件后,在裂纹尖端附近产生了裂纹闭合和裂纹表面之间的桥联。结果表明,在愈合后的试件中,裂纹的扩展被暂时延迟。此外,通过去除氧化膜,在裂纹表面涂覆防止二次氧化的金属保护膜,促进了裂纹的闭合和桥联,使分叉的小裂纹在施加电流的情况下完全愈合。
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.
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Effect of high density electric current field on fatigue cracks in stainless steel
高密度电流场对不锈钢疲劳裂纹的影响
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
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DOI:
--
发表时间:
期刊:
影响因子:
--
作者:
[]
通讯作者:
Effect of high-density electric current field on fatigue cracks in stainless steel
高密度电流场对不锈钢疲劳裂纹的影响
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
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
[唐, 細井厚志, 森田康之, 巨陽]
通讯作者:
巨陽
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