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DOI:
有色金属工程:2020,(2):8-15
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高强度银铂合金细丝的微观组织与性能
(西北有色金属研究院)
Microstructure and Properties of Ag-Pt Alloy Filament with High Strength
RONG Wan1,2, CAO Qigao*1,2, ZHENG Jing1,2, JIA Zhihua1,2, JIANG Ting1,2, Li Yine1,2, WANG Yi1,2, YANG Yang1,2
(1.Northwest Institute For Non-ferrous Metal Research,Xi’an 710016;2.China)
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投稿时间:2019-04-28    修订日期:2019-05-20
中文摘要: 采用孔型轧制和冷拉丝的方式制备了不同铂含量(1%、2%、3%和4%)、不同形变量(70%、79%、87%和93%)的高强度银铂合金细丝。利用光学显微镜、扫描电子显微镜(SEM)、电导率测试仪、显微硬度计、电子万能拉伸试验机等表征了银铂合金细丝的微观组织、力学性能、电学性能,并系统分析了铂含量和形变量对银铂合金细丝微观组织、力学性能、电学性能的影响。结果表明:随着铂含量的增加,银铂合金细丝的纤维化更加明显,晶粒变得窄小,电导率明显降低,抗拉强度在铂含量达到2%后显著提高;随着形变量的增大,纤维更加密集窄小,晶粒变得窄小,电导率基本不变,抗拉强度不断提高。
Abstract:High-strength Ag-Pt alloy filaments with different platinum content (1%, 2%, 3%, and 4%) and different deformation variables (70%, 79%, 87%, and 93%) were prepared by the way of hole rolling and cold drawing. The microstructure, mechanical properties, and electrical properties of Ag-Pt alloy filament were characterized by optical microscope (SEM), conductivity indicator, micro-hardness tester, and electronic universal testr, and the influence of platinum content and deformation on the microstructure, mechanical properties, and electrical properties of Ag-Pt alloy filament were systematically analyzed. The results indicate that the fibrillation of Ag-Pt alloy filament is more obvious and the grains become smaller with the increase of platinum content, while the conductivity decreases significantly. The tensile strength increases obviously after the platinum content reaches 2%. As the deformation increases, the fibers are denser and narrower, the grains become smaller, the conductivity is basically unchanged, and the tensile strength is continuously improved.
文章编号:     中图分类号:TG146.3    文献标志码:
基金项目:国家重点研发计划重点专项(2017YFB0305700)
引用文本:
戎 万,操齐高*,郑 晶,贾志华,姜 婷,李银娥,王 轶,杨 阳.高强度银铂合金细丝的微观组织与性能[J].有色金属工程,2020,(2):8-15.

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