袁远,汤文亮

• 1:中国铁道科学研究院集团有限公司
• 2:华东交通大学信息工程学院

摘要(Abstract)：

采用内氧化法制备的Cu-Al_2O_3弥散强化铜合金接触线,并对其组织和性能进行了研究。结果表明:Cu-Al_2O_3合金接触线抗拉强度达到568 MPa,导电率达到84%IACS,载流量达到764 A,技术性能优于TB/T 2809-2017标准中Cu-Cr-Zr合金接触线的技术要求;其强化机制主要为细晶强化及Al_2O_3粒子引起的弥散强化和应变强化;由于合金基体内Al_2O_3粒子不均匀,导致合金内部组织的不均匀,从而引起显微组织的尺寸不均和拉伸断口混合断裂的断裂方式。

关键词(KeyWords)： 接触线;Cu-Al_2O_3合金;铜基复合材料

Abstract:

Keywords:

基金项目(Foundation): 江西省重点研发计划项目(20171BBH80005)

作者(Author): 袁远,汤文亮

DOI: 10.13289/j.issn.1009-6264.2019-0302

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