Effects of solution treatment on grain coarsening and hardness of laser welds in UNS N10003 alloy contained different carbon content

doi:10.1016/j.jmst.2019.03.016

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Effects of solution treatment on grain coarsening and hardness of laser welds in UNS N10003 alloy contained different carbon content
	Yu, K ; Shi, XW ; Jiang, ZG ; Li, CW ; Chen, SJ ; Tao, W ; Zhou, XT ; Li, ZJ
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2019
卷号	35 期号:8 页码:1719—1726
关键词	HEAT-AFFECTED ZONE MECHANICAL-PROPERTIES HASTELLOY N MICROSTRUCTURE CRACKING CARBIDE
ISSN号	1005-0302
DOI	10.1016/j.jmst.2019.03.016
文献子类	期刊论文
英文摘要	Microstructure and microhardness evolution of laser welds in low carbon UNS N10003 alloy (LC alloy) and high carbon UNS N10003 alloy (HC alloy) before and after solution treatment have been characterized and investigated in this work. The eutectic M6C-gamma carbides have been transformed into spherical M6C carbides in fusion zone of HC alloy, while it can be found that the spherical M6C carbides were precipitated in fusion zone of LC alloy after solution treatment. The grain coarsening of fusion zone in HC alloy was slight because the migration of grain boundaries were impeded by the eutectic M6C-gamma carbides. However, the columnar grains of fusion zone in LC alloy were transformed into the coarse equiaxed grains due to the migration of grain boundaries were not impeded. The activation energy of grain growth between 1093 degrees C and 1177 degrees C for 20 min in LC fusion zone was 144.3 kJ mol(-1), while that of HC fusion zone was 309.5 kJ mol(-1) calculated according to the classical Arrhenius equation. The microhardness of fusion zone in LC alloy was lower than that of fusion zone in HC alloy after solution treatment because of no dispersion strengthening and grain coarsening. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31582]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China; 3.Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Heilongjiang, Peoples R China
推荐引用方式 GB/T 7714	Yu, K,Shi, XW,Jiang, ZG,et al. Effects of solution treatment on grain coarsening and hardness of laser welds in UNS N10003 alloy contained different carbon content[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(8):1719—1726.
APA	Yu, K.,Shi, XW.,Jiang, ZG.,Li, CW.,Chen, SJ.,...&Li, ZJ.(2019).Effects of solution treatment on grain coarsening and hardness of laser welds in UNS N10003 alloy contained different carbon content.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(8),1719—1726.
MLA	Yu, K,et al."Effects of solution treatment on grain coarsening and hardness of laser welds in UNS N10003 alloy contained different carbon content".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.8(2019):1719—1726.