| Formation Mechanism of Microstructural Non-uniformity in the Hot Working of Commercial-Scale Electro-slag Remelted Alloy 690 Ingots | |
| Wang, Min1; Yi, Haoyu2; Zhao, Xia1; Zhang, Long1; Ma, Yingche1; Liu, Kui1 | |
| Corresponding Author | Ma, Yingche(ycma@imr.ac.cn) |
| 2020-05-23 | |
| Source Publication | METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
 |
| ISSN | 1073-5623 |
| Volume | 51Issue:8Pages:12 |
| Abstract | 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. |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.1007/s11661-020-05813-1 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51801211] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000534991400004 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/138933 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Ma, Yingche |
| Affiliation | 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 |
| Recommended Citation 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. |
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