Creep deformation behavior of a Ni-Fe-Cr based alloy: Key influences of phosphorus microalloying

doi:10.1016/j.matchar.2024.114702

IMR OpenIR

	Creep deformation behavior of a Ni-Fe-Cr based alloy: Key influences of phosphorus microalloying
	Wu, Yunsheng 1,2; Zhang, Xiangxiang 1; Jiang, Lei 3,4; Zeng, Fanwei 5; Wang, Changshuai 3,4; Guo, Yongan 1,2; Hou, Jieshan 1,2; Guan, Xianjun 1,2; Zhou, Lanzhang 1,2
通讯作者	Guan, Xianjun(xjguan@imr.ac.cn) ; Zhou, Lanzhang(lzz@imr.ac.cn)
	2025-02-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	220 页码:11
摘要	The effects of P on the creep deformation behavior for a Ni-Fe-Cr based alloy were studied by interrupted creep test. The results show that the P-doping can suppress the growth of M23C6, but has no effect on coarsening rate of gamma' during creep deformation. And the addition of P can not only retard the pile-up of dislocation near grain boundary, but also increase the stress concentration limit of grain boundary. First of all, P can retard the movement of grain boundary and dislocation by increasing grain boundary cohesion. Therefore, the grain rotation to < 111 > orientation and the appearance of hard grains are inhibited, which decreases the geometrically necessary dislocation density near the grain boundary and delays the creep damage process during creep deformation. Then, the granular M23C6 in the P-containing alloy can improve the deformation coordination between the adjacent grains, which increases the fraction of hard grains with <111> orientation after creep failure fracture. Hence, the addition of P increases the stress concentration limit of grain boundary and extends the creep damage process. Based on the two effects of P mentioned above, phosphorus microalloying can transform the creep damage type from microcracks to creep cavities and increase the creep strength and ductility for the Ni-Fe-Cr based alloy.
关键词	Ni-Fe-Cr based alloy Phosphorus microalloying Microstructure evolution Creep deformation
资助者	Joint Funds of the National Natural Science Foundation of China ; Science and Technology Innovation 2025 Major Project of Ningbo ; National Key Research and Development Program of China
DOI	10.1016/j.matchar.2024.114702
收录类别	SCI
语种	英语
资助项目	Joint Funds of the National Natural Science Foundation of China[U23A6016] ; Science and Technology Innovation 2025 Major Project of Ningbo[2022Z199] ; National Key Research and Development Program of China[2021YFB3704104]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS记录号	WOS:001399846900001
出版者	ELSEVIER SCIENCE INC
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/180243
专题	中国科学院金属研究所
通讯作者	Guan, Xianjun; Zhou, Lanzhang
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 3.State Key Lab Clean & Efficient Turbomachinery Pow, Deyang 618000, Peoples R China 4.Dongfang Turbine Co Ltd, Dongfang Elect Corp, Deyang 618000, Peoples R China 5.Dongfang Boiler Co Ltd, Dongfang Elect Corp, Zigong 643001, Peoples R China
推荐引用方式 GB/T 7714	Wu, Yunsheng,Zhang, Xiangxiang,Jiang, Lei,et al. Creep deformation behavior of a Ni-Fe-Cr based alloy: Key influences of phosphorus microalloying[J]. MATERIALS CHARACTERIZATION,2025,220:11.
APA	Wu, Yunsheng.,Zhang, Xiangxiang.,Jiang, Lei.,Zeng, Fanwei.,Wang, Changshuai.,...&Zhou, Lanzhang.(2025).Creep deformation behavior of a Ni-Fe-Cr based alloy: Key influences of phosphorus microalloying.MATERIALS CHARACTERIZATION,220,11.
MLA	Wu, Yunsheng,et al."Creep deformation behavior of a Ni-Fe-Cr based alloy: Key influences of phosphorus microalloying".MATERIALS CHARACTERIZATION 220(2025):11.