Selective Laser Melting Molding and Interface Control of β-Tricalcium Phosphate-Enhanced Zinc Alloys

ZHANG Xuanming; SUN Kun; ZHANG Liang; FU Yulong; YANG Longlong; LIU Xiao; ZHANG Yubao

doi:10.7652/xjtuxb202506008

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Selective Laser Melting Molding and Interface Control of β-Tricalcium Phosphate-Enhanced Zinc Alloys

Special Topic　Material Performance Optimization | 更新时间：2025-08-26

- Selective Laser Melting Molding and Interface Control of β-Tricalcium Phosphate-Enhanced Zinc Alloys
- Journal of Xi’an Jiaotong University Vol. 59, Issue 6, Pages: 73-81(2025)
- 作者机构：
  
  西安交通大学金属材料强度全国重点实验室， 710049，西安
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202506008
  CLC： TG146
- Received：20 December 2024，
  
  Online First：17 February 2025，
  
  Published：10 June 2025
- 稿件说明：
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ZHANG Xuanming, SUN Kun, ZHANG Liang, et al. Selective Laser Melting Molding and Interface Control of β-Tricalcium Phosphate-Enhanced Zinc Alloys[J]. Journal of Xi’an Jiaotong University, 2025, 59(6): 73-81.
DOI：

ZHANG Xuanming, SUN Kun, ZHANG Liang, et al. Selective Laser Melting Molding and Interface Control of β-Tricalcium Phosphate-Enhanced Zinc Alloys[J]. Journal of Xi’an Jiaotong University, 2025, 59(6): 73-81. DOI： 10.7652/xjtuxb202506008.

摘要

针对传统金属骨植入物降解性能和成骨性能较差的问题，提出了一种兼具优良力学性能和成骨性能的锌合金骨植入物方法。首先，采用机械方法制备均匀混合的锌镁和β-磷酸钙粉末；然后，采用激光选区熔化技术成型β-磷酸钙增强锌合金，得到最佳工艺参数；最后，通过在β-磷酸钙表面包覆纳米ZnO，对成型后的复合材料进行界面调控，以增强其力学性能。实验结果表明：最佳激光扫描速度为800 mm·s

－1

；成型后的复合材料微观组织精细，致密度达到99.7%，维氏显微硬度达到168.66，抗压强度达到517.34 MPa；经界面调控后，复合材料的维氏显微硬度、抗压强度约为183.96和602.65 MPa，相较于原始复合材料分别提高了9%和16%，界面结合强度和整体力学性能得到显著提升。研究表明激光选区熔化技术成型的锌镁和β-磷酸钙复合材料是一种很有前途的骨植入材料，可为制备锌合金骨骼植入体提供参考。

Abstract

Aiming to address the issue of poor degradation and osteogenic properties of traditional metal bone implants

a method for preparing zinc alloy bone implants with both excellent mechanical properties and osteogenic performance is proposed. Firstly

a mechanical mixing method was used to prepare a uniform mixture of zinc

magnesium

and β-tricalcium phosphate powde

rs. Then

selective laser melting technology was employed to fabricate β-tricalcium phosphate-reinforced zinc alloy

and the optimal process parameters were obtained. Finally

by coating the surface of β-tricalcium phosphate with nano-ZnO

the interface control of the composite material was carried out to enhance its mechanical properties. The results showed that the optimal scanning speed was 800 mm·s

－1

. The fabricated composite material had a fine microstructure

with a density reaching 99.7%

a microhardness of 168.66

and a compressive strength of 517.34 MPa. After interface control

the microhardness and compressive strength of the composite material were approximately 183.96 and 602.65 MPa

respectively

which are 9% and 16% higher than those of the original composite material. Therefore

the interfacial bonding strength and the overall mechanical properties of the composite material have been enhanced. The study proves that the zinc

magnesium

and β-tricalcium phosphate composite material fabricated by selective laser melting technology is a promising bone implant material

laying the foundation for the preparation of zinc alloy skeletal implants.

关键词

Keywords

references

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