Process Parameter Optimization for the Laser Metal Deposition of a Functionally Graded GH4169/K417G Superalloy and the Effects of Preheating and Composition on Cracking Behavior

doi:10.1007/s11665-023-08376-5

IMR OpenIR

	Process Parameter Optimization for the Laser Metal Deposition of a Functionally Graded GH4169/K417G Superalloy and the Effects of Preheating and Composition on Cracking Behavior
	Liu, Shuai 1; Liu, Changsheng 2; Yuan, Chao 1
通讯作者	Liu, Shuai(15040369625@163.com) ; Liu, Changsheng(csliu@mail.neu.edu.cn) ; Yuan, Chao(ychao@imr.ac.cn)
	2023-07-05
发表期刊	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
ISSN	1059-9495
页码	17
摘要	This study aims to select a suitable process and composition for the fabrication of a functionally graded GH4169/K417G superalloy by laser metal deposition (LMD). A universal process parameter was optimized through an orthogonal test, and the influence of the preheated substrate temperature on the residual stress was investigated. Finally, the effects of preheating and composition on cracking and methods for controlling cracking were noted. As a result, equations for the relationship between the relative densities of samples prepared by LMD with different graded compositions and energy density coupled to laser parameters were established for the first time. Thus, an equation for the relationship between the appropriate laser power and graded composition was obtained. By preheating the substrate to higher temperatures, the maximum residual stress was gradually reduced from 753 to 362 MPa, and thus, the cracking tendency was suppressed partly. However, the decisive cracking factor was the & gamma;/& gamma;& PRIME; eutectic characteristic during the forming of K417G. When the terminal graded composition was designed to be 10% GH4169, the & gamma;/& gamma;& PRIME; eutectic phase exhibited a smaller size and lower quantity, which prevented cracking. The results of this research will help engineers select the appropriate compositions and processes to prepare dual-superalloy blisks.
关键词	cracking functionally graded material (FGM) laser metal deposition (LMD) process parameter optimization superalloys
资助者	Joint Founds of National Natural Science Foundation of China (NSFC)-Liaoning ; Liaoning Provincial Natural Science Foundation of China ; Opening Project of State Key Laboratory of Light Alloy Casting Technology for High-end Equipment
DOI	10.1007/s11665-023-08376-5
收录类别	SCI
语种	英语
资助项目	Joint Founds of National Natural Science Foundation of China (NSFC)-Liaoning[U1508213] ; Liaoning Provincial Natural Science Foundation of China[2020-KF-14-02] ; Opening Project of State Key Laboratory of Light Alloy Casting Technology for High-end Equipment[LACT-008]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:001022635100004
出版者	SPRINGER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/178484
专题	中国科学院金属研究所
通讯作者	Liu, Shuai; Liu, Changsheng; Yuan, Chao
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Liu, Shuai,Liu, Changsheng,Yuan, Chao. Process Parameter Optimization for the Laser Metal Deposition of a Functionally Graded GH4169/K417G Superalloy and the Effects of Preheating and Composition on Cracking Behavior[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2023:17.
APA	Liu, Shuai,Liu, Changsheng,&Yuan, Chao.(2023).Process Parameter Optimization for the Laser Metal Deposition of a Functionally Graded GH4169/K417G Superalloy and the Effects of Preheating and Composition on Cracking Behavior.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,17.
MLA	Liu, Shuai,et al."Process Parameter Optimization for the Laser Metal Deposition of a Functionally Graded GH4169/K417G Superalloy and the Effects of Preheating and Composition on Cracking Behavior".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE (2023):17.