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技術(shù)文章

測量應(yīng)用案例-20220510

閱讀:129          發(fā)布時間:2022-5-10
 

文獻(xiàn)名: In situ formation of D022-Al3Ti during selective laser melting of nano-TiC/AlSi10Mg alloy prepared by electrostatic self-assembly

 

 

作者 Zhenhua FanacXingchen YanbZhiyong FuaBen NiucJunfu ChencYongjun HudCheng ChangbJianglong Yicd

a South China University of Technology, Guangzhou, 510640, PR China

b National Engineering Laboratory for Modern Materials Surface Engineering Technology, The Key Lab of Guangdong for Modern Surface Engineering Technology, Institute of New Materials, Guangdong Academy of Sciences, Guangzhou, 510651, PR China

c Guangdong Provincial Key Laboratory of Advanced Welding Technology, China-Ukraine Institute of Welding, Guangdong Academy of Sciences, Guangzhou, 510650, PR China

d Guangdong University of Technology, Guangzhou, 510006, PR China

 

 

 

摘要:In this present work, a novel electrostatic self-assembly method was invented to produce AlSi10Mg powders homogeneously decorated with TiC nanoparticles. The TiC/AlSi10Mg alloy with homogenous, crack-free, equiaxed and super fine-grained were produced using selective laser melting (SLM). The in-situ formation of D022-Al3Ti created by TiC and Al matrix during SLM was revealed at the first time and both TiC and D022-Al3Ti nanoparticles were extremely effective inoculant for an SLMed AlSi10Mg alloy. Therefore, the SLMed TiC/AlSi10Mg alloy exhibited a high tensile strength (ultimate tensile strength ~ 456 MPa, yield strength ~338 MPa) and high microhardness (131 HV0.05), which were higher than the SLMed AlSi10Mg alloy (ultimate tensile strength ~437 MPa, yield strength ~254 MPa and microhardness ~113 HV0.05). This study can be regarded as a guidance in the fabrication of metal matrix nanocomposites using for SLM.

 

關(guān)鍵詞:Selective laser meltingAlSi10Mg alloyElectrostatic self-assemblyMicrostructural evolutionMechanical properties

 

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