A metastable β-type Zr-4Mo-4Sn alloy with low cost, low Young's modulus and low magnetic susceptibility for biomedical applications

被引：20

作者：

Guo, Shun ^{[1
,2
]}

Shang, Yao ^{[1
]}

Zhang, Jinming ^{[1
]}

Zhang, Junsong ^{[1
]}

Meng, Qingkun ^{[3
]}

Cheng, Xiaonong ^{[1
]}

Zhao, Xinqing ^{[2
]}

机构：

[1] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Peoples R China

[2] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China

[3] China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221116, Jiangsu, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2018年 / 754卷

基金：

中国国家自然科学基金;

关键词：

Biomaterials; Zr alloys; beta-type; Low elastic modulus; Low magnetic susceptibility; HARD-TISSUE REPLACEMENTS; CUBIC PHASE-STABILITY; NB-BASED ALLOYS; TITANIUM-ALLOYS; TI-ALLOYS; MECHANICAL-PROPERTIES; ELASTIC PROPERTIES; OMEGA PHASE; ZR; MO;

D O I：

10.1016/j.jallcom.2018.04.279

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

By alloying and thermo-mechanical treatment, a novel low-cost metastable beta-type Zr-4Mo-4Sn alloy was designed and fabricated for biomedical applications. Upon solution treatment plus quenching, the beta-type Zr-4Mo-4Sn alloy exhibits a combination of low Young's modulus (48 GPa) and low magnetic susceptibility (1.22 x 10(-6)cm(3)g(-1)). This low magnetic susceptibility (?) is reasonably attributed to the choice of alloying components with low ?, i.e., Zr (?(Zr) = 1-32 x 10(-6)cm(3)g(-1)), Mo (?(Mo) = 0.75 x 10(-6)cm(3) g(-1)) and Sn (?(Sn) = 0.03 x 10(-6)cm(3)g(-1)). An analysis of single-crystal elastic constants and Hill approximation indicated that in comparison to binary beta-type Ti-based alloys, the present beta-type Zr-4Mo-4Sn alloy possesses lower bcc-structural (?-phase) stability represented by its lower C' and much lower C-44, resulting in the ultralow Young's modulus of Zr-4Mo-4Sn alloy. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：232 / 237

页数：6

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