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Sm、Sb合金化对AZ61组织和性能影响的研究
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重庆大学材料科学与工程学院,重庆大学材料学院,重庆大学材料学院,重庆大学材料学院,重庆大学材料学院,重庆大学材料学院

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TG

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重庆市科技计划项目(CSTC2013jcyjC60001)


Effects of Sb and Sm on microstructure and mechanical properties of AZ61 Alloy
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Material science and engineering college of Chongqing University,Material science and engineering college of Chongqing University,Material science and engineering college of Chongqing University,Material science and engineering college of Chongqing University,Material science and engineering college of Chongqing University,Material science and engineering college of Chongqing University

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    摘要:

    研究了铸态AZ61-1Sm-xSb合金,并对其进行了热挤压和时效处理(T5)。结果表明,AZ61-1Sm-xSb合金的主要合金相为β-Mg17Al12、Al2Sm、Al3Sm及SbSm。与AZ61相比,AZ61-1Sm中的Mg17Al12相呈现不连续分布的特征;而在AZ61-1Sm中添加Sb,Mg17Al12不连续分布特征更加明显,并且出现针状SbSm相,当 Sb添加量为1.5wt%时出现大块状SbSm相,而β-Mg17Al12、Al2Sm、Al3Sm均为颗粒状并呈弥散分布。Sm和Sb的添加能提高AZ61合金挤压和时效态合金力学性能,而在AZ61-1Sm合金中添加Sb元素能显著提高合金的高温强度。

    Abstract:

    The microstructure and mechanical properties of AZ61-1Sm-xSb alloy were investigated. The results shown that the mainly phase of AZ61-1Sm-xSb alloy were β-Mg17Al12, Al2Sm, Al3Sm and SbSm. Compared with AZ61, the shape of Mg17Al12 in AZ61-1Sm alloy are discontinuous; Due to the addition of Sm and Sb, the microstructure is further refined, and a new SmSb phase is formed. Addition of Sm and Sb enhanced the strength of hot-extruded and T5 AZ61 alloys at room temperature. Moreover adding Sb into AZ61-1Sm alloy could enhance its strength at 150℃ obviously.

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陈玉安,叶睿宇,宋裕,金李,刘浩,潘复生. Sm、Sb合金化对AZ61组织和性能影响的研究[J].稀有金属材料与工程,2016,45(6):1488~1494.[Chen Yu'an, Ye Ruiyu, Song Yu, Jin Li, Liu Hao, Pan Fusheng. Effects of Sb and Sm on microstructure and mechanical properties of AZ61 Alloy[J]. Rare Metal Materials and Engineering,2016,45(6):1488~1494.]
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  • 收稿日期:2014-05-15
  • 最后修改日期:2014-10-23
  • 录用日期:2015-03-25
  • 在线发布日期: 2016-10-08
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