电致热处理工业纯铝线的强度演化规律

doi:10.13251/j.issn.0254-6051.2023.05.008

金属热处理 ›› 2023, Vol. 48 ›› Issue (5): 49-53.DOI: 10.13251/j.issn.0254-6051.2023.05.008

电致热处理工业纯铝线的强度演化规律

章益¹, 侯嘉鹏², 袁衢龙¹, 张振军², 陈玲¹, 张哲峰²

1.浙江华电器材检测研究院有限公司国家电力器材产品安全性能质量检验检测中心, 浙江杭州 311121;
2.中国科学院金属研究所师昌绪先进材料创新中心, 辽宁沈阳 110016

出版日期:2023-05-25 发布日期:2023-06-21
作者简介:章益(1989—),男,工程师,硕士,主要研究方向为电力器材检测与研究,E-mail: 627233326@qq.com
基金资助:
国家电网浙江省电力公司项目(2021FD04)

Strength evolution law of electric heat treated commercially pure Al wire

Zhang Yi¹, Hou Jiapeng², Yuan Qulong¹, Zhang Zhenjun², Chen Ling¹, Zhang Zhefeng²

1. National Quality Inspection & Test Center of Electrical Equipment Safety Performance, Zhejiang Huadian Equipment Testing Institute Co., Ltd., Hangzhou Zhejiang 311121, China;
2. Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang Liaoning 110016, China

Online:2023-05-25 Published:2023-06-21

摘要/Abstract

摘要： 分别采用干燥箱和施加电流装置对工业纯铝线进行了传统的退火处理和电致热处理,并研究了不同温度下退火处理和电致热处理对工业纯铝线强度和微观组织的影响规律及机制。结果表明,当热处理温度相同时,与退火态工业纯铝线相比,电致热处理态工业纯铝线的抗拉强度更低,晶粒尺寸更大,施加电流在工业纯铝线内晶界处导致的局部焦耳热温升是电致热处理态工业纯铝线晶粒尺寸更大的主要机制,也是导致电致热处理态工业纯铝线强度更低的本质。

关键词: 工业纯铝线, 电致热处理, 退火, 强度, 晶粒尺寸

Abstract: Traditionally annealing and electric heat treatment of commercially pure Al wire were carried out by using drying oven and current-providing device, respectively. The influence law and mechanism of traditionally annealing and electrical heat treatment at different temperatures on strength and microstructure of the commercially pure Al wire were investigated. The results show that when the heat treatment temperature is the same, the tensile strength and the grain size of the electric heated commercially pure Al wire is respectively lower and larger than those of the traditionally annealed, the main mechanism of which is the overheating caused by local Joule heating effect on grain boundaries in the commercially pure Al wire.

Key words: commercially pure Al wire, electric heat treatment, annealing, strength, grain size

中图分类号:

TG166.3

章益, 侯嘉鹏, 袁衢龙, 张振军, 陈玲, 张哲峰. 电致热处理工业纯铝线的强度演化规律[J]. 金属热处理, 2023, 48(5): 49-53.

Zhang Yi, Hou Jiapeng, Yuan Qulong, Zhang Zhenjun, Chen Ling, Zhang Zhefeng. Strength evolution law of electric heat treated commercially pure Al wire[J]. Heat Treatment of Metals, 2023, 48(5): 49-53.

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电致热处理工业纯铝线的强度演化规律

Strength evolution law of electric heat treated commercially pure Al wire

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