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yu zhi zhong jian ceng de 1.6c-uhcs/40cr chao su xing han jie gong yi shi yan
Author(s): 
Pages: 17-20
Year: Issue:  10
Journal: Welding Technology

Keyword:  超高碳钢中间层超塑性固态焊接;
Abstract: 基于对预置中间层的1.6C-UHCS/40Cr超塑性焊接工艺方案的优化设计,在非真空及无保护气氛下,进行了超塑性焊接工艺试验.试验结果表明:选用轧制态工业纯铁中间层,能有效改善1.6C-UHCS/40Cr超塑焊界面区的塑性变形能力,提高焊接性.在预压应力56.6 MPa、焊接温度750℃、初始应变速率1.5×10-4/s的条件下,经10 min压接,接头抗拉强度为702 MPa,比不加中间层的接头强度提高35%,达相同热力循环下40Cr母材的抗拉强度.
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