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材料研究学报  2003, Vol. 17 Issue (3): 279-286    
  论文 本期目录 | 过刊浏览 |
电场对异种金属摩擦焊接头组织与性能的影响
傅 莉; 杜随更;介万奇
西北工业大学
引用本文:

傅莉; 杜随更; 介万奇 . 电场对异种金属摩擦焊接头组织与性能的影响[J]. 材料研究学报, 2003, 17(3): 279-286.

全文: PDF(1376 KB)  
摘要: 研究了外加电场对T2紫铜和1Cr18Ni9Ti不锈钢摩擦焊接头焊合区的显微组织、主要合金元素的扩散区宽度以及接头力学性能的影响。结果表明,外加电场加快了焊合区金属的动态再结晶进程,不同形式的电场对焊合区铜侧的组织形态与分布有不同的影响。在负电场(试件接电源负极)作用下,焊合区金属发生的动态再结晶程度最大,晶粒尺寸较大且分布均匀;交流电场对晶粒尺寸的作用则略有减小。交流电场和负电场通过对金属内部电子密度的影响,促进了焊接过程中焊缝区Cu﹑Fe和Cr的扩散,并提高了焊接接头扭转强度。
关键词 材料科学基础学科摩擦焊接电场效应    
Key words
收稿日期: 1900-01-01     
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