金属Cu中孪晶的作用已受到广泛关注.介绍了孪晶的分类及晶体学结构,综述了孪晶对Cu强度、塑性、加工硬化、应变速率敏感性、变形机制和电阻率(或电导率)等方面的影响规律及内在机理,讨论了孪晶Cu研究的不足之处及需要加强的方面,并指出通过适当的工艺技术,在晶粒中引入高密度的孪晶同时获得高强度、高塑性和良好电导性能,将是未来发展高性能工程用Cu及其合会的重要方向.
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