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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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强变形对Cu-Cr合金组织性能的影响
DOI: 10.3724/SP.J.1037.2012.00263, PP. 1459-1466
Keywords: Cu--Cr合金,强度,电导率,相界面
Abstract:
采用冷拉拔方法制备了高强高导Cu-Cr合金导线,考察了合金界面结构随拉拔变形量的演变,探讨了界面结构变化与合金性能的关系.结果表明,随变形量增大,Cu和Cr相均被逐渐拉长成纤维状,且两相的晶面之间逐渐趋于(111)Cu//(110)Cr,Cu/Cr界面由非共格关系演变为共格关系,同时,通过Cu/Cr界面的互扩散增强.界面密度的增加是导致电阻率随变形量增加持续增大的主要因素.界面共格化是造成合金强度增大并趋于恒定的原因.
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