The synchronous improvement of strength and plasticity (SISP) in new Ni-Co based disc superalloys by controling stacking fault energy

IMR OpenIR

	The synchronous improvement of strength and plasticity (SISP) in new Ni-Co based disc superalloys by controling stacking fault energy
	Xu, H.; Zhang, Z. J.; Zhang, P.; Cui, C. Y.; Jin, T.; Zhang, Z. F.; Zhang, ZJ; Zhang, ZF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.; Zhang, ZF (reprint author), Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China.; Cui, CY (reprint author), Chinese Acad Sci, Inst Met Res, Superalloy Div, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
	2017-08-14
发表期刊	NATURE PUBLISHING GROUP
ISSN	2045-2322
卷号	7 页码:-
摘要	It is a great challenge to improve the strength of disc superalloys without great loss of plasticity together since the microstructures benefiting the strength always do not avail the plasticity. Interestingly, this study shows that the trade-off relationship between strength and plasticity can be broken through decreasing stacking fault energy (SFE) in newly developed Ni-Co based disc superalloys. Axial tensile tests in the temperature range of 25 to 725 degrees C were carried out in these alloys with Co content ranging from 5% to 23% (wt.%). It is found that the ultimate tensile strength (UTS) and uniform elongation (UE) are improved synchronously when microtwinning is activated by decreasing the SFE at 650 and 725 degrees C. In contrast, only UTS is improved when stacking fault (SF) dominates the plastic deformation at 25 and 400 degrees C. These results may be helpful for designing advanced disc superalloys with relatively excellent strength and plasticity simultaneously.; It is a great challenge to improve the strength of disc superalloys without great loss of plasticity together since the microstructures benefiting the strength always do not avail the plasticity. Interestingly, this study shows that the trade-off relationship between strength and plasticity can be broken through decreasing stacking fault energy (SFE) in newly developed Ni-Co based disc superalloys. Axial tensile tests in the temperature range of 25 to 725 degrees C were carried out in these alloys with Co content ranging from 5% to 23% (wt.%). It is found that the ultimate tensile strength (UTS) and uniform elongation (UE) are improved synchronously when microtwinning is activated by decreasing the SFE at 650 and 725 degrees C. In contrast, only UTS is improved when stacking fault (SF) dominates the plastic deformation at 25 and 400 degrees C. These results may be helpful for designing advanced disc superalloys with relatively excellent strength and plasticity simultaneously.
部门归属	[xu, h. ; zhang, z. j. ; zhang, p. ; zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, liaoning, peoples r china ; [xu, h. ; zhang, z. f.] univ chinese acad sci, 19a yuquan rd, beijing 100049, peoples r china ; [cui, c. y. ; jin, t.] chinese acad sci, inst met res, superalloy div, 72 wenhua rd, shenyang 110016, liaoning, peoples r china
学科领域	Multidisciplinary Sciences
资助者	National Natural Science Foundation of China (NSFC) [51331007, 51671189, 11332010]
收录类别	SCI
语种	英语
WOS记录号	WOS:000407559800013
引用统计	被引频次：36[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/321006/79151
专题	中国科学院金属研究所
通讯作者	Zhang, ZJ; Zhang, ZF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.; Zhang, ZF (reprint author), Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China.; Cui, CY (reprint author), Chinese Acad Sci, Inst Met Res, Superalloy Div, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Xu, H.,Zhang, Z. J.,Zhang, P.,et al. The synchronous improvement of strength and plasticity (SISP) in new Ni-Co based disc superalloys by controling stacking fault energy[J]. NATURE PUBLISHING GROUP,2017,7:-.
APA	Xu, H..,Zhang, Z. J..,Zhang, P..,Cui, C. Y..,Jin, T..,...&Cui, CY .(2017).The synchronous improvement of strength and plasticity (SISP) in new Ni-Co based disc superalloys by controling stacking fault energy.NATURE PUBLISHING GROUP,7,-.
MLA	Xu, H.,et al."The synchronous improvement of strength and plasticity (SISP) in new Ni-Co based disc superalloys by controling stacking fault energy".NATURE PUBLISHING GROUP 7(2017):-.