Susceptibility of internal defects to process parameters and control mechanism of defects in cross wedge rolling of Inconel 718 alloy

doi:10.1016/j.jmapro.2024.07.045

IMR OpenIR

	Susceptibility of internal defects to process parameters and control mechanism of defects in cross wedge rolling of Inconel 718 alloy
	Liu, Jiaxu 1,2; Shi, Mingjie 1,2; Cheng, Ming 1; Chen, Shuaifeng 1; Zhang, Shihong 1; Vladimir, Petrenko 3
通讯作者	Cheng, Ming(mcheng@imr.ac.cn)
	2024-09-15
发表期刊	JOURNAL OF MANUFACTURING PROCESSES
ISSN	1526-6125
卷号	125 页码:337-353
摘要	Cross wedge rolling has been demonstrated as a new preforming process for superalloy aero-engine blades, but the real application of it is limited by the precision regulation of internal defects in rolled workpieces, and the related research is still incomplete. In this paper, the feasibility of forming Inconel 718 alloy workpieces with large section reduction ratio up to 85 % via single-pass CWR was verified. And microstructure evolution features were investigated under different process parameters (S-initial grain size, T-heating temperature and V-rolling velocity), to reveal the generation and control mechanism of internal defects. The results indicate that defects tend to nucleate at the interface between carbide particles and matrix, and then propagate along chain carbides or grain boundaries. When multiple defects converge into a closed pattern, partial microstructures will separate from the matrix resulting in larger defect. And when tool parameters (alpha-35 degrees, beta-2.5 degrees) are constant, the optimization of process parameters can achieve effective regulation of internal defects. With the increase of S value (12-64 mu m), the maximum height of defects undergoes a change from 48 mu m to 6 mu m and then increases to 25 mu m. And a similar trend was observed as the values of T (950-1020 degrees C) or V (350-500 mm/s) increased. In essence, the control mechanism is to change the propagation pathways of defects in which the damage caused by intergranular propagation is greater than that by transgranular propagation. Specially, the defect sensitivity factor was proposed to quantitatively compare the influence of process parameters on defects and the S has the greatest influence on defects. Resultantly, the optimized process parameters are determined for defect-free workpieces, namely, S of 24-48 mu m, T of 970-1000 degrees C, V of 400 mm/s.
关键词	Cross wedge rolling Internal defects Inconel 718 alloy Process parameters Microstructure evolution
资助者	International Science and Technology Cooperation Project in Liaoning Province of China ; National Key RD Plan of China ; Sino-Belarus Inter-Governmental S&T Cooperation project
DOI	10.1016/j.jmapro.2024.07.045
收录类别	SCI
语种	英语
资助项目	International Science and Technology Cooperation Project in Liaoning Province of China[2022JH2/10700006] ; International Science and Technology Cooperation Project in Liaoning Province of China[2023JH2/10700014] ; National Key RD Plan of China[SQ2018YFE0119600] ; Sino-Belarus Inter-Governmental S&T Cooperation project[CB02-09]
WOS研究方向	Engineering
WOS类目	Engineering, Manufacturing
WOS记录号	WOS:001278516300001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：1[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/321006/188513
专题	中国科学院金属研究所
通讯作者	Cheng, Ming
作者单位	1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Natl Acad Sci Belarus, Phys Tech Inst, Minsk 220084, BELARUS
推荐引用方式 GB/T 7714	Liu, Jiaxu,Shi, Mingjie,Cheng, Ming,et al. Susceptibility of internal defects to process parameters and control mechanism of defects in cross wedge rolling of Inconel 718 alloy[J]. JOURNAL OF MANUFACTURING PROCESSES,2024,125:337-353.
APA	Liu, Jiaxu,Shi, Mingjie,Cheng, Ming,Chen, Shuaifeng,Zhang, Shihong,&Vladimir, Petrenko.(2024).Susceptibility of internal defects to process parameters and control mechanism of defects in cross wedge rolling of Inconel 718 alloy.JOURNAL OF MANUFACTURING PROCESSES,125,337-353.
MLA	Liu, Jiaxu,et al."Susceptibility of internal defects to process parameters and control mechanism of defects in cross wedge rolling of Inconel 718 alloy".JOURNAL OF MANUFACTURING PROCESSES 125(2024):337-353.