Effect of Ti content and martensite–austenite constituents on microstructure and mechanical property

doi:10.1080/13621718.2017.1404694

	Effect of Ti content and martensite–austenite constituents on microstructure and mechanical property
	Han, Chaoyu 1; Li, Kejian 2; Liu, Xia 3; Cao, Rui 1; Cai, Zhipeng 2,4,5
刊名	Science and Technology of Welding and Joining
	2018-07-04
卷号	23 期号:5 页码:410-419
关键词	Ferrite Fracture toughness Grain size and shape Inclusions Martensite Metals Microstructure Transmission electron microscopy Welds Acicular ferrite Allotriomorphic ferrites Charpy impact energy Microstructure and mechanical properties Multi-pass weld metal Prior austenite grain size Ti content Weld metal
ISSN号	13621718
DOI	10.1080/13621718.2017.1404694
英文摘要	In this study, the relationship between impact toughness and microstructure in Cr–Mo–V multi-pass weld metals has been systematically investigated. The Charpy impact energy of two weld metals with various alloy elements increased remarkably. The primary cause of the change of impact toughness was attributed to the difference of acicular ferrite (AF) content and prior-austenite grain size, and the size and distribution of necklace martensite–austenite (M–A) constituents. With increasing Ti content, Ti-containing inclusions were increased, which resulted in an increased number of nucleation sites for AF, change in the microstructure from allotriomorphic ferrite to AF, and refined ferrite grain size. In addition, smaller and more dispersive M–A constituents were observed in the weld metal with higher impact toughness. © 2017 Institute of Materials, Minerals and Mining. Published by Taylor & Francis on behalf of the Institute.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	Taylor and Francis Ltd.
WOS记录号	WOS:000431601300007
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114918]
专题	材料科学与工程学院
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Department of Material Science and Engineering, Lanzhou University of Technology, Lanzhou, China; 2.Department of Mechanical Engineering, Tsinghua University, Beijing, China; 3.Shanghai Electric Power Generation Equipment Co., Ltd., Shanghai, China; 4.State Key Laboratory of Tribology, Tsinghua University, Beijing, China; 5.Collaborative Innovation Center of Advanced Nuclear Energy Technology, Beijing, China
推荐引用方式 GB/T 7714	Han, Chaoyu,Li, Kejian,Liu, Xia,et al. Effect of Ti content and martensite–austenite constituents on microstructure and mechanical property[J]. Science and Technology of Welding and Joining,2018,23(5):410-419.
APA	Han, Chaoyu,Li, Kejian,Liu, Xia,Cao, Rui,&Cai, Zhipeng.(2018).Effect of Ti content and martensite–austenite constituents on microstructure and mechanical property.Science and Technology of Welding and Joining,23(5),410-419.
MLA	Han, Chaoyu,et al."Effect of Ti content and martensite–austenite constituents on microstructure and mechanical property".Science and Technology of Welding and Joining 23.5(2018):410-419.