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| Microstructure and local strains in GH3535 alloy heat affected zone and their influence on the mechanical properties | |
| Chen, SJ; Tsang, DKL; Jiang, L; Yu, K; Li, CW; Li, Z; Li, ZJ; Zhou, XT; Yang, JG | |
| 2017 | |
| Source Publication | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| ISSN | 0921-5093 |
| Volume | 699Issue:-Pages:48-54 |
| Subtype | 期刊论文 |
| Abstract | GH3535 alloy plates were welded by Gas Tungsten Arc Welding in order to study the evolution of microstructure and mechanical properties in the heat-affected zone (HAZ). Our results suggest that welding thermal cycles induced the morphology evolution of M6C carbides from block to eutectic near the fusion line in the HAZ. Electron backscatter diffraction (EBSD) results show that significant amounts of plastic strains occurred in the HAZ after welding. In addition, local coherent twin boundaries (Sigma 3) and dislocations were observed to decrease with the distance from the fusion line. Mechanical tests indicate that the hardness, yield strength and ultimate strength in HAZ are higher than those in base metal, and their values decrease with the distance from the fusion line. However, the elongation increases as the strengths decrease. The higher strength and lower elongation in the HAZ are mainly attributed to residual strains with the function of strain-hardening. Moreover, the change of Sigma 3 boundary which is in good agreement with that of elongation suggests a positive influence on the plastic deformation. |
| Keyword | Single-crystal Superalloy Stress-corrosion Cracking Mo-cr Alloy Thermal Exposure Primary Water Weld Joint Deformation Evolution Temperature Steel |
| DOI | 10.1016/j.msea.2017.05.072 |
| Indexed By | SCI |
| WOS Keyword | SINGLE-CRYSTAL SUPERALLOY ; STRESS-CORROSION CRACKING ; MO-CR ALLOY ; THERMAL EXPOSURE ; PRIMARY WATER ; WELD JOINT ; DEFORMATION ; EVOLUTION ; TEMPERATURE ; STEEL |
| Language | 英语 |
| WOS ID | WOS:000404816600006 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/28733 |
| Collection | 中科院上海应用物理研究所2011-2019年 |
| Recommended Citation GB/T 7714 | Chen, SJ,Tsang, DKL,Jiang, L,et al. Microstructure and local strains in GH3535 alloy heat affected zone and their influence on the mechanical properties[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2017,699(-):48-54. |
| APA | Chen, SJ.,Tsang, DKL.,Jiang, L.,Yu, K.,Li, CW.,...&Yang, JG.(2017).Microstructure and local strains in GH3535 alloy heat affected zone and their influence on the mechanical properties.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,699(-),48-54. |
| MLA | Chen, SJ,et al."Microstructure and local strains in GH3535 alloy heat affected zone and their influence on the mechanical properties".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 699.-(2017):48-54. |
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| Microstructure and l（2524KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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