Formation of e/a-constant phases in the Ti-Zr-Ni-Cu system

IMR OpenIR

	Formation of e/a-constant phases in the Ti-Zr-Ni-Cu system
	J. B. Qiang; Q. Wang; Y. M. Wang; H. Huang; J. Wu; C. Dong
	2007
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	449 页码:565-568
摘要	Based on an optimized quasicrystal-forming composition Ti40Zr40Ni20 (numbers indicate at.%), e/a (valence electron per atom)-constant plane with ela value of 1.2 and R-a (average atomic size)-constant plane with R-a value of 0.1474 nm are constructed in the Ti-Zr-Ni-Cu system, and a series of Ti-Zr-Ni-Cu alloys are designed along the intersecting line of the two planes. The experimental results showed that the single-phase quasicrystals can be obtained by the casting method at the compositions of Ti40Zr40Ni20 and Ti33Zr44Ni18Cu5, and a bulk glassy alloy is formed at the composition of Ti12Zr55Ni13Cu20. In the Ti3Zr60Ni12Cu25 and Zr60Ni10Cu30 alloys, the tI-(Zr,Ti)(2)(Cu,Ni) tetragonal phase becomes the dominant phase. Theoretical analysis revealed that the above three types of phases belong to a group of e/a-constant electronic compounds, and there exists close relationship in their local atomic structure, which is supported by the crystallization event of the Ti12Zr55Ni13Cu20 bulk metallic glass. (c) 2006 Elsevier B.V. All rights reserved.
部门归属	dalian univ technol, state key lab mat modificat, dalian 116024, peoples r china. city univ hong kong, dept phys & mat sci, kowloon, hong kong, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;dong, c (reprint author), dalian univ technol, state key lab mat modificat, dalian 116024, peoples r china;dong@dlut.edu.cn
关键词	Metallic Glass Quasicrystals E/a-constant Phases Bulk Metallic Glasses Quasi-crystals Electron-concentration Liquid Alloy Rule
URL	查看原文
WOS记录号	WOS:000245477800129
引用统计	被引频次：7[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/321006/33785
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. B. Qiang,Q. Wang,Y. M. Wang,et al. Formation of e/a-constant phases in the Ti-Zr-Ni-Cu system[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2007,449:565-568.
APA	J. B. Qiang,Q. Wang,Y. M. Wang,H. Huang,J. Wu,&C. Dong.(2007).Formation of e/a-constant phases in the Ti-Zr-Ni-Cu system.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,449,565-568.
MLA	J. B. Qiang,et al."Formation of e/a-constant phases in the Ti-Zr-Ni-Cu system".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 449(2007):565-568.