Formation Mechanism of Microstructural Non-uniformity in the Hot Working of Commercial-Scale Electro-slag Remelted Alloy 690 Ingots

doi:10.1007/s11661-020-05813-1

IMR OpenIR

	Formation Mechanism of Microstructural Non-uniformity in the Hot Working of Commercial-Scale Electro-slag Remelted Alloy 690 Ingots
	Wang, Min 1; Yi, Haoyu 2; Zhao, Xia 1; Zhang, Long 1; Ma, Yingche 1; Liu, Kui 1
通讯作者	Ma, Yingche(ycma@imr.ac.cn)
	2020-05-23
发表期刊	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN	1073-5623
卷号	51 期号:8 页码:12
摘要	Microstructural non-uniformity in the wrought material of Alloy 690 is investigated in this study by analyzing the dissolution behavior of intergranular carbides, performing laboratorial forgings to explore the microstructural evolution rules and conduct industrial forgings to verify the laboratorial results. The intergranular carbides in Alloy 690 ESR ingots cannot be fully dissolved at a temperature < 1473 K (1200 degrees C), and undissolved carbides cause the appearance of carbide strips in the forged microstructure. Carbide strips are confirmed to be responsible for the formation of fine-grain bands in the wrought material by restricting the growth of nearby grains during annealing treatment. Industrial forgings agree well with the laboratorial tests, and it is recommended that in industrial practice the soaking temperature of large ESR ingots should be set between 1473 K and 1493 K (1200 degrees C and 1220 degrees C) for better carbide dissolution, and an evident ingot temperature drop prior to deformation should be avoided.
资助者	National Natural Science Foundation of China
DOI	10.1007/s11661-020-05813-1
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51801211]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000534991400004
出版者	SPRINGER
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/138933
专题	中国科学院金属研究所
通讯作者	Ma, Yingche
作者单位	1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.China Nucl Power Technol Res Inst, Shenzhen 518000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Min,Yi, Haoyu,Zhao, Xia,et al. Formation Mechanism of Microstructural Non-uniformity in the Hot Working of Commercial-Scale Electro-slag Remelted Alloy 690 Ingots[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2020,51(8):12.
APA	Wang, Min,Yi, Haoyu,Zhao, Xia,Zhang, Long,Ma, Yingche,&Liu, Kui.(2020).Formation Mechanism of Microstructural Non-uniformity in the Hot Working of Commercial-Scale Electro-slag Remelted Alloy 690 Ingots.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,51(8),12.
MLA	Wang, Min,et al."Formation Mechanism of Microstructural Non-uniformity in the Hot Working of Commercial-Scale Electro-slag Remelted Alloy 690 Ingots".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 51.8(2020):12.