Synthesis of high strength aluminum alloys in the Al-Ni-La system

IMR OpenIR

	Synthesis of high strength aluminum alloys in the Al-Ni-La system
	J. Mu; P. F. Sha; Z. W. Zhu; Y. D. Wang; H. F. Zhang; Z. Q. Hu
	2014
发表期刊	Journal of Materials Research
ISSN	0884-2914
卷号	29 期号:5 页码:708-717
摘要	High strength aluminum (Al) alloys were prepared by rapid solidification method in the Al-Ni-La system. Microstructural characterizations show that all the investigated Al-Ni-La alloys are comprised of Al, rod-like Al3Ni, and blocky Al11La3 phases, of which the size and volume fraction are composition-dependent. The Al85.5Ni9.5La5 (at.%) alloy shows the finest microstructure, which contributes to the highest strength along with considerable plasticity. The experimental analysis and finite element simulation (FES) show that the distribution of the intermetallic phases greatly affects the mechanical properties of the alloys. The rod-like Al3Ni phase precipitated with the locally uniform direction prevents the propagation of cracks and benefits the plastic deformation, whereas the blocky Al11La3 phase exhibits the nature of brittleness and acts as the origin of the microcrack initiation. These findings suggest a new method to design high strength Al alloys.
部门归属	[mu, juan ; wang, yandong] northeastern univ, key lab anisotropy & texture mat moe, shenyang 110004, peoples r china. [mu, juan ; sha, pengfeng ; zhu, zhengwang ; zhang, haifeng ; hu, zhuangqi] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; zhang, hf (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; hfzhang@imr.ac.cn
关键词	Supercooled Liquid Region Bulk Metallic Glasses Amorphous-alloys Mechanical-properties Mg Alloys Powders Microhardness Crystallization Behavior Size
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/72891
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Mu,P. F. Sha,Z. W. Zhu,et al. Synthesis of high strength aluminum alloys in the Al-Ni-La system[J]. Journal of Materials Research,2014,29(5):708-717.
APA	J. Mu,P. F. Sha,Z. W. Zhu,Y. D. Wang,H. F. Zhang,&Z. Q. Hu.(2014).Synthesis of high strength aluminum alloys in the Al-Ni-La system.Journal of Materials Research,29(5),708-717.
MLA	J. Mu,et al."Synthesis of high strength aluminum alloys in the Al-Ni-La system".Journal of Materials Research 29.5(2014):708-717.