Composition Design and Nanoindentation Studies on Mg-Ca-Zn Metallic Glass

被引：6
|
作者：
Prabhu, Yogesh [1 ]
Vincent, S. [2 ]
Nair, Adithya [2 ]
Kim, Wan [3 ,4 ]
Park, E. S. [3 ,4 ]
Bhatt, Jatin [1 ]
机构：
[1] Visvesvaraya Natl Inst Technol, Dept Met & Mat Engn, Nagpur 440010, Maharashtra, India
[2] Birla Inst Technol & Sci Pilani, Dept Mech Engn, Dubai Campus, Dubai 345055, U Arab Emirates
[3] Seoul Natl Univ, Res Inst Adv Mat, Dept Mat Sci & Engn, Seoul 08826, South Korea
[4] Seoul Natl Univ, Inst Engn Res, Seoul 08826, South Korea
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2022年 / 53卷 / 04期
关键词：
FORMING ABILITY; ATOMIC-STRUCTURE; MECHANICAL-PROPERTIES; CORROSION BEHAVIOR; AMORPHOUS-ALLOYS; MAGNESIUM ALLOYS; PACKING DENSITY; YOUNGS MODULUS; ZR; PREDICTION;
D O I：
10.1007/s11661-022-06602-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present work, we propose a thermodynamic approach to identify glass-forming composition in a biodegradable Mg-Ca-Zn system by optimizing chemical enthalpy (Delta H-chem) and atomic mismatch entropy (Delta S-sigma/k(B)) in the statistically designed configurational entropy (Delta S-conf/R) range. Metallic glass composition obtained is fabricated by using melt spinning technique. Glassy nature of the alloy is confirmed by XRD, DSC and TEM analysis. Furthermore, thermodynamic effects of Zn addition in a Mg-Ca-Zn system on glass-forming ability is systematically investigated. Additionally, localized mechanical behavior of metallic glass is analyzed by nanoindentation test. Compared to reported metallic glasses in the Mg-Ca-Zn system, Mg50Ca7.5Zn42.5 exhibits improved hardness and hardness to modulus (H/E) ratio. (C) The Minerals, Metals & Materials Society and ASM International 2022
引用
收藏
页码：1419 / 1429
页数：11
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