Formation and impact of functionally graded buffer layers between martensitic stainless steel and wrought steel substrate by laser metal deposition

doi:10.1016/j.matdes.2021.109489

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	Formation and impact of functionally graded buffer layers between martensitic stainless steel and wrought steel substrate by laser metal deposition
	Wang, Zhiguo 2,3; Zhao, Jibin 2,3; Zhao, Yuhui 2,3,5; Zhang, Zhihao 4; Zhang, Hongyu 1; He, Zhenfeng 3
刊名	MATERIALS & DESIGN
	2021-03-01
卷号	201 页码:12
关键词	Laser metal deposition Metals and alloys Microstructure Functionally graded structure Mechanical properties Buffer layer
ISSN号	0264-1275
DOI	10.1016/j.matdes.2021.109489
通讯作者	Zhao, Jibin(jbzhao@sia.cn) ; Zhao, Yuhui(yhzhao@sia.cn) ; Zhang, Zhihao(zhzhang@xmu.edu.cn)
英文摘要	In this study, the martensitic stainless-steel powder had been successfully deposited on the surfaces of 1045 wrought steel substrates using five types of laser metal deposition strategies. The results showed that a thin buffer layer can be naturally generated in-between the deposition layer and substrate owning to the dilution effect, producing functionally graded structures consisted of martensite dendrite matrices and intermetallic phases (e.g., M-23(C, B)(6)). Unfortunately, the poor deformation characteristic of natural buffer layers can exacerbate the risk of cracking, leading to an incompatibility between martensitic stainless steel and forming steel. A thick artificial buffer layer was then designed by addition of Inconel 625 powder. Because of the formation of graded austenite phase in the artificial buffer layer, the yield strength of specimen was enhanced significantly. Hence, our study can be used for manufacture of reliable moulds with high surface hardness and structural strength and may be helpful in further developing hybrid forming strategy in the field of mould manufacture. When subjected to stress impact during mould filling, the artificial buffer layer with functionally graded properties would have a perfect capability to bear the deformation as the load increased, dramatically improving the reliability and functionality of moulds. (C) 2021 The Author(s). Published by Elsevier Ltd.
资助项目	National Key Research and Development Program[2018YFB1105802] ; National Natural Science Foundation of China[51805526]
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000621221800004
资助机构	National Key Research and Development Program ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/160967]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhao, Jibin; Zhao, Yuhui; Zhang, Zhihao
作者单位	1.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Shenyang Inst Automat, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Robot & Intelligent Mfg, Shenyang 110169, Peoples R China 4.Xiamen Univ, Coll Mat, Dept Mat Sci & Engn, Fujian Key Lab Adv Mat, Xiamen 361005, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zhiguo,Zhao, Jibin,Zhao, Yuhui,et al. Formation and impact of functionally graded buffer layers between martensitic stainless steel and wrought steel substrate by laser metal deposition[J]. MATERIALS & DESIGN,2021,201:12.
APA	Wang, Zhiguo,Zhao, Jibin,Zhao, Yuhui,Zhang, Zhihao,Zhang, Hongyu,&He, Zhenfeng.(2021).Formation and impact of functionally graded buffer layers between martensitic stainless steel and wrought steel substrate by laser metal deposition.MATERIALS & DESIGN,201,12.
MLA	Wang, Zhiguo,et al."Formation and impact of functionally graded buffer layers between martensitic stainless steel and wrought steel substrate by laser metal deposition".MATERIALS & DESIGN 201(2021):12.