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Sm、Sb合金化對AZ61組織和性能影響的研究
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重慶大學(xué)材料科學(xué)與工程學(xué)院,重慶大學(xué)材料學(xué)院,重慶大學(xué)材料學(xué)院,重慶大學(xué)材料學(xué)院,重慶大學(xué)材料學(xué)院,重慶大學(xué)材料學(xué)院

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TG

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重慶市科技計劃項目（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:

    研究了鑄態(tài)AZ61-1Sm-xSb合金，并對其進(jìn)行了熱擠壓和時效處理（T5）。結(jié)果表明，AZ61-1Sm-xSb合金的主要合金相為β-Mg17Al12、Al2Sm、Al3Sm及SbSm。與AZ61相比，AZ61-1Sm中的Mg17Al12相呈現(xiàn)不連續(xù)分布的特征；而在AZ61-1Sm中添加Sb，Mg17Al12不連續(xù)分布特征更加明顯，并且出現(xiàn)針狀SbSm相，當(dāng) Sb添加量為1.5wt%時出現(xiàn)大塊狀SbSm相，而β-Mg17Al12、Al2Sm、Al3Sm均為顆粒狀并呈彌散分布。Sm和Sb的添加能提高AZ61合金擠壓和時效態(tài)合金力學(xué)性能，而在AZ61-1Sm合金中添加Sb元素能顯著提高合金的高溫強(qiáng)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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陳玉安,葉睿宇,宋裕,金李,劉浩,潘復(fù)生. Sm、Sb合金化對AZ61組織和性能影響的研究[J].稀有金屬材料與工程,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
  • 錄用日期:2015-03-25
  • 在線發(fā)布日期: 2016-10-08
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