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
卷号	23 期号:5 页码:410-419
关键词	Cr-Mo-V steel weld metal ti content inclusion martensite-austenite constituents acicular ferrite impact toughness transmission electron microscope
ISSN号	1362-1718
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, a change in the microstructure from allotriomorphic ferrlte 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.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000431601300007
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32921]
专题	材料科学与工程学院
通讯作者	Cai, Zhipeng
作者单位	1.Lanzhou Univ Technol, Dept Mat Sci & Engn, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou, Gansu, Peoples R China 2.Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China 3.Shanghai Elect Power Generat Equipment Co Ltd, Shanghai, Peoples R China 4.Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China 5.Collaborat Innovat Ctr Adv Nucl Energy Technol, Beijing 100084, Peoples R 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.