In-situ Si-p/A380 alloy nano micro composite formation through cold spray additive manufacturing and subsequent hot rolling treatment: Microstructure and mechanical properties

doi:10.1016/j.jallcom.2018.11.399

IMR OpenIR

	In-situ Si-p/A380 alloy nano micro composite formation through cold spray additive manufacturing and subsequent hot rolling treatment: Microstructure and mechanical properties
	Qiu, Xiang 1,2; Tariq, Naeem ul Haq 1,3,4; Qi, Lu 1,2; Zan, Yu-ning 1,2; Wang, Yu-jiang 5; Wang, Ji-qiang 1; Du, Hao 1; Xiong, Tian-ying 1
通讯作者	Wang, Ji-qiang(jqwang11s@imr.ac.cn) ; Xiong, Tian-ying(tyxiong@imr.ac.cn)
	2019-04-05
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	780 页码:597-606
摘要	Cold gas dynamic spray (cold spraying, CS) has emerged as a promising solid state manufacturing technique to fabricate thick metallic deposits with limited risk of oxidation, phase transformations and residual thermal stresses. As-sprayed deposits usually exhibit poor mechanical properties and often require post-spray heat treatments to reduce inter-splat defects. In most of the cases, traditional heat treatments offer limited benefits to rejuvenate the mechanical properties of the deposit. This preliminary work presents an effective way to modify the microstructure and improve the mechanical properties of cold sprayed A380 aluminum alloy. As-sprayed alloy deposits were subjected to hot rolling treatments with different thickness reductions. Results suggest that the hot rolled samples show better strength and ductility compared with their as-sprayed state. Microstructural evolution and resulting mechanical properties, at different processing conditions, were analyzed through optical microscopy (OM), scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), high resolution transmission electron microscopy (HRTEM) and tensile tests. Sample with thickness reduction of 40% displayed highest values of ultimate strength (UTS, 420 +/- 2.1 MPa) and elongation (Elf, 5 +/- 2.3%) compared with the corresponding values of as-sprayed (100 +/- 13.4 MPa, 0%) and conventionally heat treated (186 +/- 17 MPa, 0.93 +/- 0.05%) samples. The improvement in mechanical properties of the rolled samples were mainly attributed to the progressive elimination/reduction of inter-splat defects together with in-situ composite microstructure formation. EBSD and HRTEM revealed that in-situ composite structure was formed through progressive refinement and uniform distribution of Si particles in alpha-Al matrix containing coherent theta' precipitates. (C) 2018 Elsevier B.V. All rights reserved.
关键词	Cold spray Post spray rolling treatment Microstructure Mechanical properties In-situ composite
资助者	National Natural Science Foundation of China
DOI	10.1016/j.jallcom.2018.11.399
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51671205]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000456789000074
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：30[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/321006/131381
专题	中国科学院金属研究所
通讯作者	Wang, Ji-qiang; Xiong, Tian-ying
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China 4.Pakistan Inst Engn & Appl Sci, Dept Met & Mat Engn, Islamabad, Pakistan 5.Acad Army Amored Forces, Natl Key Lab Remfg, Beijing 100072, Peoples R China
推荐引用方式 GB/T 7714	Qiu, Xiang,Tariq, Naeem ul Haq,Qi, Lu,et al. In-situ Si-p/A380 alloy nano micro composite formation through cold spray additive manufacturing and subsequent hot rolling treatment: Microstructure and mechanical properties[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,780:597-606.
APA	Qiu, Xiang.,Tariq, Naeem ul Haq.,Qi, Lu.,Zan, Yu-ning.,Wang, Yu-jiang.,...&Xiong, Tian-ying.(2019).In-situ Si-p/A380 alloy nano micro composite formation through cold spray additive manufacturing and subsequent hot rolling treatment: Microstructure and mechanical properties.JOURNAL OF ALLOYS AND COMPOUNDS,780,597-606.
MLA	Qiu, Xiang,et al."In-situ Si-p/A380 alloy nano micro composite formation through cold spray additive manufacturing and subsequent hot rolling treatment: Microstructure and mechanical properties".JOURNAL OF ALLOYS AND COMPOUNDS 780(2019):597-606.