Improvement in corrosion resistance and biocompatibility of AZ31 magnesium alloy by NH2+ ions

被引：20

作者：

Wei, Xian ^{[1
,2
]}

Li, Zhicheng ^{[3
]}

Liu, Pinduo ^{[4
]}

Li, Shijian ^{[1
]}

Peng, Xubiao ^{[1
]}

Deng, Rongping ^{[5
]}

Zhao, Qing ^{[1
]}

机构：

[1] Beijing Inst Technol, Sch Phys, Beijing 100081, Peoples R China

[2] Taiyuan Inst Technol, Dept Sci, Taiyuan 030008, Peoples R China

[3] Taiyuan Normal Univ, Dept Phys, Taiyuan 030031, Peoples R China

[4] Beijing Inst Technol, Sch Life Sci, Beijing 100081, Peoples R China

[5] Beloit Coll, Sci Div, 700 Coll St, Beloit, WI 53511 USA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2020年 / 824卷

基金：

美国国家科学基金会;

关键词：

Magnesium alloy; Corrosion resistance; Biocompatibility; Ion implantation; IN-VIVO CORROSION; ANTICORROSION BEHAVIOR; BIOMEDICAL MAGNESIUM; SURFACE-ROUGHNESS; IMPLANTATION; MG; CYTOCOMPATIBILITY; NITROGEN; DEGRADATION; PERFORMANCE;

D O I：

10.1016/j.jallcom.2020.153832

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：

Magnesium alloys have been considered to be favorable biodegradable metallic materials used in orthopedic and cardiovascular applications. We introduce NH2+ to the AZ31 Mg alloy surface by ions implantation at the energy of 50 keV with doses ranging from 1 x 10(16) ions/cm(2) to 1 x 10(17) ions/cm(2) to improve its corrosion resistance and biocompatibility. Surface morphology, mechanical properties, corrosion behavior and biocompatibility are studied in the experiments. The analysis confirms that the modified surface with smoothness and hydrophobicity significantly improves the corrosion resistance and biocompatibility while maintains the mechanical property of the alloy. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：10

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