工艺参数对lpbf沉积AlSi10Mg/SiCp复合材料显微组织和力学性能的影响

IF 1.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Technology Pub Date : 2023-05-09 DOI:10.1080/02670836.2023.2208920

Yan Chen, Z. Jian, Kan Li, K. Song, Yongming Ren, Yongqin Liu, B. Dang, Man Zhu, Qian Gao

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引用次数: 1

摘要

在铝合金中加入SiC颗粒(SiCp)形成Al/SiCp复合材料，可以提高材料的弹性模量，降低材料的热膨胀系数。本文研究了alsi10mg - 10vol的显微组织、孔隙率、热膨胀系数和力学性能。研究了激光粉末床熔融法制备% SiCp复合材料。lpbf沉积AlSi10Mg/SiCp复合材料的抗拉强度、抗压强度、抗压模量和热膨胀系数分别为351、861.9 MPa、121.9 GPa和18.23 × 10−6°C−1。结果表明，当E - v方程中只有一个参数发生变化时，利用E - v方程来评价LPBF参数对复合材料力学性能和相对密度的影响是准确的。

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Effects of processing parameters on the LPBF-deposited AlSi10Mg/SiCp composite: microstructure and mechanical properties

Adding SiC particle (SiCp) to Al alloys to form Al/SiCp composite can increase the elastic modulus and reduce the thermal expansion coefficient of the material. In this study, the microstructure, porosity and thermal expansion coefficient, and mechanical properties of AlSi10Mg-10 vol.% SiCp composite fabricated by laser powder bed fusion (LPBF) were investigated. The ultimate tensile strength, compressive strength, compressive modulus, and the thermal expansion coefficient of LPBF-deposited AlSi10Mg/SiCp composite are 351, 861.9 MPa, 121.9 GPa and 18.23 × 10−6°C−1, respectively. The results demonstrate that the use of the E v equation to evaluate the effect of LPBF parameters on mechanical properties and relative density of the composites is accurate when only one parameter changes in the E v equation.

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来源期刊

Materials Science and Technology 工程技术-材料科学：综合

CiteScore

2.70

自引率

5.60%

发文量

审稿时长

3 months

期刊介绍：《Materials Science and Technology》（MST） is an international forum for the publication of refereed contributions covering fundamental and technological aspects of materials science and engineering.