选择性激光熔化制备纳米wc修饰AlSi10Mg复合材料的显微组织和力学性能:热处理的影响

Q3 Engineering

International Journal of Computational Materials Science and Surface Engineering Pub Date : 2020-01-01 DOI:10.1504/IJCMSSE.2020.10034958

H. Ye, Fang-bing Le, Jianqiang Zhang, Yong Liu

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引用次数: 0

摘要

采用气雾化法制备了纳米wc和AlSi10Mg复合粉末，用于选择性激光熔化(SLM)。研究了热处理条件对SLM法制备WC/AlSi10Mg合金微观组织和力学性能的影响，并阐明了微观组织演变的机理。铝衬底过饱和，固溶度因退火温度升高而降低。Si颗粒从Al基体中析出。样品的力学性能主要受Si粒度的影响。少量WC的加入(0.1 wt.%)使沉积试样的抗拉强度达到515 MPa，与其他论文相比，发现试样的力学性能得到了显著提高。研究结果表明，少量WC的加入和热处理对提高SLM制备的AlSi10Mg试样的力学性能是有效的。

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Microstructure and mechanical properties of nano-WC decorated AlSi10Mg composite produced by selective laser melting: effect of heat treatment

Nano-WC and AlSi10Mg composite powder were fabricated by gas-atomised for selective laser melting (SLM). Here, the influence of the heat treatment conditions on microstructure and mechanical properties of WC/AlSi10Mg produced by SLM were investigated, and the mechanisms of microstructure evolution were elucidated. Al substrates are oversaturated, and the solid solubility decreases due to increased annealing temperature. Si particles precipitate from the Al matrix. The mechanical properties of the sample are predominantly governed by the Si particle size. The addition of a small amount of (0.1 wt.%) WC results in tensile strength of 515 MPa in the as-deposited specimen, in comparison with other papers, it was found that significantly enhanced the mechanical properties of the specimen. The results of this study show that adding a small amount of WC and the heat treatment are effective in enhancing the mechanical properties of SLM produced AlSi10Mg samples.

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来源期刊

International Journal of Computational Materials Science and Surface Engineering Engineering-Engineering (all)

CiteScore

1.20

自引率

0.00%

发文量

期刊介绍： IJCMSSE is a refereed international journal that aims to provide a blend of theoretical and applied study of computational materials science and surface engineering. The scope of IJCMSSE original scientific papers that describe computer methods of modelling, simulation, and prediction for designing materials and structures at all length scales. The Editors-in-Chief of IJCMSSE encourage the submission of fundamental and interdisciplinary contributions on materials science and engineering, surface engineering and computational methods of modelling, simulation, and prediction. Papers published in IJCMSSE involve the solution of current problems, in which it is necessary to apply computational materials science and surface engineering methods for solving relevant engineering problems.