The tensile behavior of GH3535 superalloy at elevated temperature
Han, FF; Zhou, BM; Huang, HF; Leng, B; Lu, YL; Dong, JS; Li, ZJ; Zhou, XT; Li, ZJ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Thorium Molten Salts Reactor Ctr, Beijing 100864, Peoples R China.
2016
发表期刊MATERIALS CHEMISTRY AND PHYSICS
ISSN0254-0584
卷号182页码:22-31
文章类型期刊论文
摘要The tensile behavior of GH3535 alloy has been investigated at strain rates of 8.33 x 10(-5)/s(-1) -8.33 x 10(-3)/s(-1), in the temperature range of 25-800 degrees C. The results showed that the ultimate tensile strength was decreased with increasing temperature and increased with rising strain rate, whereas the yield strength kept almost a constant value at the temperature range from 550 to 800 degrees C in all strain rates test. The formation of M12C carbides at the grain boundary during the tension process played an important role in increasing the yield strength of the alloy at elevated temperatures. But inhomogeneous deformation at 650 degrees C resulted in the minimum ductility of the alloy. Additionally, various types of serrations were noticed on the stress-strain curves for the alloy tested in the temperature range of 500 - 800 degrees C. Normal Portevin-Le Chatelier (PLC) effect and positive strain rate sensitivity were observed in this alloy. Type A and A + B serrations were presented to stress-strain curves at temperatures below 650 degrees C, whereas type C serration was noticed when the temperature rose above 650 degrees C. The analysis suggested that the interactions between substitutional solutes migration and mobile dislocations were the main reason for the serrated flow behavior in this alloy. (C) 2016 Elsevier B.V. All rights reserved.
关键词Alloys Mechanical Properties Microstructure Carbides
DOI10.1016/j.matchemphys.2016.07.001
收录类别SCI
语种英语
WOS记录号WOS:000383524900005
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/26659
专题中科院上海应用物理研究所2011-2018年
通讯作者Li, ZJ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Thorium Molten Salts Reactor Ctr, Beijing 100864, Peoples R China.
推荐引用方式
GB/T 7714
Han, FF,Zhou, BM,Huang, HF,et al. The tensile behavior of GH3535 superalloy at elevated temperature[J]. MATERIALS CHEMISTRY AND PHYSICS,2016,182:22-31.
APA Han, FF.,Zhou, BM.,Huang, HF.,Leng, B.,Lu, YL.,...&Li, ZJ .(2016).The tensile behavior of GH3535 superalloy at elevated temperature.MATERIALS CHEMISTRY AND PHYSICS,182,22-31.
MLA Han, FF,et al."The tensile behavior of GH3535 superalloy at elevated temperature".MATERIALS CHEMISTRY AND PHYSICS 182(2016):22-31.
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