Effect of Isothermal Heat Treatment on the Semi-solid Microstructure of AM60-1Si Alloy

HU Yong;RAO Li;ZUO Tian-ping

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  • Sponsored by: China Association for Science and Technology (CAST)

    Editor-In-Chief: Xu Yida

    ISSN 1000-1093

    　

  • Hosted By: China Ordnance Society

    Published By: Acta Armamentarii

    CN 11-2176/TJ

Acta Armamentarii, a Chinese monthly journal, was first published in 1979. The journal is supervised by China Association for Science and Technology, sponsored by China Ordnance Society，and edited and published by Editorial Board of Acta Armamentarii. The Journal is included in all important domestic databases，and also collected by Engineering Index (EI, USA), Chemical Abstracts (CA, USA), Science Abstracts (SA, UK）, Abstract Journal (AJ, Russia), and Current Bibliography on Science and Technology(CBST).Acta Armamentarii has been selected into the journal Of Ordnance Science and Technology (Weapons Industry) Field Of High Quality Scientific and Technological Periodical Classification Catalogue (2022 edition), ranking T1, and the journal of Automotive Engineering Field of High Quality Scientific and technological Periodical classification Catalogue, ranking T2.
Acta Armamentarii ›› 2016, Vol. 37 ›› Issue (4) : 690-695. DOI: 10.3969/j.issn.1000-1093.2016.04.017
Paper

Effect of Isothermal Heat Treatment on the Semi-solid Microstructure of AM60-1Si Alloy

  • HU Yong1,2，RAO Li1， ZUO Tian-ping1
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Abstract

The effect of isothermal heat treatment on the microstructure of semi-solid AM60-1Si alloy is investigated. The results show that the semi-solid microstructure evolution of AM60-1Si alloy experiences three stages, i.e., formation of globular particles, spheroidization and coarsening, during isothermal heat treatment process. With the increase in holding temperature and holding time, the size of primary α-Mg phase decreases at first and then increases. The fine well-distributed globular semi-solid microstructure can be obtained at 605 ℃ for 45 min. The Mg2Si phase changes from initial Chinese script shape to polygon shape during isothermal heat treatment.

Key words

metallic material / semi-solid / Mg2Si / isothermal heat treatment / microstructure

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HU Yong，RAO Li， ZUO Tian-ping. Effect of Isothermal Heat Treatment on the Semi-solid Microstructure of AM60-1Si Alloy. Acta Armamentarii. 2016, 37(4): 690-695 https://doi.org/10.3969/j.issn.1000-1093.2016.04.017

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