Hot deformation characteristics and hot working window of as-cast large-tonnage GH3535 superalloy ingot

doi:10.1016/j.jmst.2018.04.001

CORC > 金属研究所 > 中国科学院金属研究所

	Hot deformation characteristics and hot working window of as-cast large-tonnage GH3535 superalloy ingot
	Wang, Y 1; Wang, JS ; Dong, JS ; Li, AM ; Li, ZJ ; Xie, G 1; Lou, LH
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2018-12-01
卷号	34 期号:12 页码:2439-2446
关键词	Ni-base superalloy Dynamic recrystallization Hot working Large-tonnage ingot Processing map
ISSN号	1005-0302
DOI	10.1016/j.jmst.2018.04.001
英文摘要	Deformation characteristics and range of optimized hot working parameters of a 6.5 tons GH3535 super-alloy ingot with an average columnar grain size of over 1 mm in diameter were investigated. Axial compression experiments were performed in temperature range of 900-1240 degrees C and strain rate range of 0.001-30 s(-1) at a total strain of 0.8. The hot deformation activation energy of the experimental GH3535 alloy is calculated to be 483.22 kJ/mol. Furthermore, the deformation constitutive equation is established by the peak stresses obtained from the stress-strain curves under various conditions. The hot working window of the alloy ingot at a strain of 0.8 can be preliminarily discussed based on the deformed microstructures and processing maps. The optimized hot working window was thus determined at the strain of 0.95 for 6.5 tons GH3535 alloy ingot by the supplementary compression tests. A large-size GH3535 superalloy ring with a dimension of Phi 3010 mm x 410 mm was ultimately manufactured. (C) 2018 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
学科主题	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000443274500029
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79807]
专题	金属研究所_中国科学院金属研究所
作者单位	1.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Liaoning, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 3.Harbin Engn Univ, Coll Mat Sci & Chem Engn, Harbin 150001, Heilongjiang, Peoples R China 4.Fushun Special Steel Shares Co Ltd, Ctr Technol, Fushun 113001, Peoples R China 5.Chinese Acad Sci, Shanghai Inst Appl Phys, Thorium Molten Salts Reactor Ctr, Shanghai 201800, Peoples R China
推荐引用方式 GB/T 7714	Wang, Y,Wang, JS,Dong, JS,et al. Hot deformation characteristics and hot working window of as-cast large-tonnage GH3535 superalloy ingot[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2018,34(12):2439-2446.
APA	Wang, Y.,Wang, JS.,Dong, JS.,Li, AM.,Li, ZJ.,...&Lou, LH.(2018).Hot deformation characteristics and hot working window of as-cast large-tonnage GH3535 superalloy ingot.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,34(12),2439-2446.
MLA	Wang, Y,et al."Hot deformation characteristics and hot working window of as-cast large-tonnage GH3535 superalloy ingot".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 34.12(2018):2439-2446.