Effect on hardness and microstructures of rail joint with ultra-narrow gap arc welding by post weld heat treatment

doi:10.4028/www.scientific.net/KEM.737.90

	Effect on hardness and microstructures of rail joint with ultra-narrow gap arc welding by post weld heat treatment
	Gong, Lian; Zhu, Liang; Zhou, Hong Xiang
	2017
会议名称	International Conference on Material Science and Engineering Technology, ICMSET 2016
会议录名称	Key Engineering Materials
卷号	737 KEM
页码	90-94
会议日期	October 14, 2016 - October 16, 2016
会议地点	Phuket, Thailand
出版者	Trans Tech Publications Ltd
摘要	U71Mn rails were welded by ultra-narrow gap welding with constrained arc by flux strips, then normalizing treatment and stress relief annealing were performed for the joints. Another sample with no heat treatment, was studied in comparison. The effect of post weld heat treatment on the hardness and microstructure of rail joint were studied by scanning electron microscope (SEM) and microhardness test. The test results showed that normalizing treatment can improve the hardness of weld seam and base metal, and stress relief annealing couldn't improve the hardness of joints obviously. © 2017 Trans Tech Publications.
关键词	Binary alloys Electric welding Gas welding Heat treatment Manganese alloys Microstructure Scanning electron microscopy Stress relief Uranium alloys Welds Base metals Microhardness tests Narrow gap Narrow gap welding Post weld heat treatment Rail joint Stress relief annealing Weld seam
DOI	10.4028/www.scientific.net/KEM.737.90
收录类别	EI
语种	英语
EI入藏号	20173304040799
EI主题词	Hardness
ISSN	10139826
来源库	Compendex
分类代码	537.1 Heat Treatment Processes - 538.2 Welding - 538.2.1 Welding Processes - 543.2 Manganese and Alloys - 547 Minor, Precious and Rare Earth Metals and Alloys - 951 Materials Science
引用统计	无
文献类型	会议论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/118009
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院
作者单位	State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou; 730050, China
第一作者单位	省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式 GB/T 7714	Gong, Lian,Zhu, Liang,Zhou, Hong Xiang. Effect on hardness and microstructures of rail joint with ultra-narrow gap arc welding by post weld heat treatment[C]:Trans Tech Publications Ltd,2017:90-94.