Effect of Multiple-Pass Friction Stir Processing Overlapping on Microstructure and Mechanical Properties of As-Cast NiAl Bronze

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	Effect of Multiple-Pass Friction Stir Processing Overlapping on Microstructure and Mechanical Properties of As-Cast NiAl Bronze
	D. R. Ni; P. Xue; Z. Y. Ma
	2011
发表期刊	Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science
ISSN	1073-5623
卷号	42A 期号:8 页码:2125-2135
摘要	As-cast Cu-9Al-4.5Ni-4Fe NiAl bronze alloy (NAB) was subjected to multiple-pass friction stir processing (FSP) with a 50 pct overlap. After FSP, the coarse microstructure of the base metal (BM) was transformed to defect-free material with fine microstructure. While the torchlike patterns in the stir zone (SZ) and the uplifted grains in the transitional zones (TZs) between two passes were observed in the multiple-pass FSP region, no grain coarsening was found in the remnant zone of the previous SZ after subsequent FSP pass. The hardness value of the FSP materials was higher than that of the BM and was homogeneously distributed throughout the entire multiple-pass FSP region. The FSP materials showed greatly improved tensile properties compared to the BM, and the TZs showed similar tensile strength and ductility to the single-pass FSP materials. The BM broke in a mixture mode of brittle cleavage and microvoid coalescence fracture, whereas the FSP and TZ samples failed in the latter fracture mode. The results showed that the multiple-pass overlapping (MPO) FSP was feasible to modify the microstructure of large-sized plate of the NAB.
部门归属	[ni, d. r.; xue, p.; ma, z. y.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;ni, dr (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;zyma@imr.ac.cn
关键词	Nickel-aluminum-bronze Electrochemical Corrosion Sea-water Alloys Polarization Behavior Tensile
URL	查看原文
WOS记录号	WOS:000291704200001
引用统计	被引频次：28[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/321006/30599
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. R. Ni,P. Xue,Z. Y. Ma. Effect of Multiple-Pass Friction Stir Processing Overlapping on Microstructure and Mechanical Properties of As-Cast NiAl Bronze[J]. Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,2011,42A(8):2125-2135.
APA	D. R. Ni,P. Xue,&Z. Y. Ma.(2011).Effect of Multiple-Pass Friction Stir Processing Overlapping on Microstructure and Mechanical Properties of As-Cast NiAl Bronze.Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,42A(8),2125-2135.
MLA	D. R. Ni,et al."Effect of Multiple-Pass Friction Stir Processing Overlapping on Microstructure and Mechanical Properties of As-Cast NiAl Bronze".Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science 42A.8(2011):2125-2135.

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