| 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, Shuai1; Liu, Changsheng2; Yuan, Chao1 | |
| Corresponding Author | Liu, Shuai(15040369625@163.com) ; Liu, Changsheng(csliu@mail.neu.edu.cn) ; Yuan, Chao(ychao@imr.ac.cn) |
| 2023-07-05 | |
| Source Publication | JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
 |
| ISSN | 1059-9495 |
| Pages | 17 |
| Abstract | 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. |
| Keyword | cracking functionally graded material (FGM) laser metal deposition (LMD) process parameter optimization superalloys |
| Funding Organization | 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 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| WOS ID | WOS:001022635100004 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/178484 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Shuai; Liu, Changsheng; Yuan, Chao |
| Affiliation | 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 |
| Recommended Citation 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. |
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