Effect of Ti content on microstructure and properties of AZ61 magnesium alloy

doi:10.13251/j.issn.0254-6051.2020.01.029

Abstract

Abstract: The Ti element was introduced into the AZ61 by adding K ₂ TiF ₆. The microstructure and mechanical properties of AZ61 with trace Ti were studied by using XRD, OM, SEM, EDS and mechanical properties testing. The results show that with the increase of Ti content, the grain size of AZ61 alloy decreases first and then increases. When the Ti content is 1.5%, the refining effect is the best, and the as-cast grain size is 41 μm. The mechanical properties of the as-cast and heat-treated states first increase and then decrease, and the tensile strength reaches 201.5 MPa and 223.5 MPa, respectively.

Key words: AZ61 alloy, K₂TiF₆, grain refinement, heat treatment, mechanical properties

CLC Number:

TG146.2

Yan Zenan, Wang Liping, Feng Yicheng, Zhao Lili, Zhao Sicong, Guo Erjun. Effect of Ti content on microstructure and properties of AZ61 magnesium alloy[J]. HTM, 2020, 45(1): 143-149.

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