医用镁合金激光熔覆羟基磷灰石涂层初探

高亚丽; 熊党生; 王存山; 潘学民

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医用镁合金激光熔覆羟基磷灰石涂层初探
Laser Cladding Hydroxypatite Coating on Magnesium Alloy for Biomaterials Application
2009年29卷第4期页码：305-307
纸质出版日期： 2009 ，
DOI：

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[1]高亚丽,熊党生,王存山,潘学民.医用镁合金激光熔覆羟基磷灰石涂层初探[J].特种铸造及有色合金,2009,29(04):305-307+287-288.

Gao Yali1, Xiong Dangsheng1, Wang Cunshan2, et al. Laser Cladding Hydroxypatite Coating on Magnesium Alloy for Biomaterials Application[J]. Special Casting & Nonferrous Alloys, 2009,29(4):305-307.
[1]高亚丽,熊党生,王存山,潘学民.医用镁合金激光熔覆羟基磷灰石涂层初探[J].特种铸造及有色合金,2009,29(04):305-307+287-288. DOI：

Gao Yali1, Xiong Dangsheng1, Wang Cunshan2, et al. Laser Cladding Hydroxypatite Coating on Magnesium Alloy for Biomaterials Application[J]. Special Casting & Nonferrous Alloys, 2009,29(4):305-307. DOI：

摘要

为改善医用镁合金表面耐蚀性和生物相容性

采用激光熔覆技术在AZ91D镁合金表面制备具有生物活性的羟基磷灰石涂层。结果表明

所制备的涂层和镁合金基体达到了良好的冶金结合

涂层显微结构为致密的胞状晶

主要由Mg、HA、CaH2P2O7和CaH4（PO3）2.H2O组成

其中Ca和P的摩尔比为1.73

接近理论值1.67

从而大大提高了涂层的生物活性。另外

控制Mg对涂层的稀释对涂层制备起关键作用。

Abstract

In order to improve the corrosion resistance and biocompatibility of the magnesium alloy for biomaterials application

hydroxypatite coating with the biology activity on AZ91D Mg alloy was prepared by laser cladding method. The results show that prepared coating exhibits desirable bonding with magnesium alloy substrate

and microstructure of the exhibits is the compact cellar grain

and it is composed of Mg

CaH2P2O7 and CaH4（PO3）2H2O

in which atomic ratio of Ca via P is 1.73

closing to theoretical value of 1.67

so the biological activity of the coating exhibits improved significantly. In addition

controlling dilution of magnesium plays a key role in the preparation of the coating.