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EBSD Study on the Superplastic Deformation of Mg-7.0Al-0.4Zn Magnesium Alloy
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EBSD Study on the Superplastic Deformation of Mg-7.0Al-0.4Zn Magnesium Alloy
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Basic Research Project of the Education Department of Henan Province (2011A430025)

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    摘要:

    采用EBSD分析技術(shù)研究了Mg-7.0Al-0.4Zn鎂合金超塑性變形機制。結(jié)果表明，超塑拉伸變形主要是通過晶界滑動和晶內(nèi)塑性滑移協(xié)調(diào)完成的。變形初期，隨著變形量的增大，{0002}//ED的織構(gòu)明顯增強，晶內(nèi)滑移起主要協(xié)調(diào)變形作用。變形中后期孿生開動，接近斷裂時，晶內(nèi)滑移基本消失，孿生成為主要的協(xié)調(diào)變形機制，但孿生的貢獻較小

    Abstract:

    The superplastic deformation mechanism of Mg-7.0Al-0.4Zn alloy was studied by EBSD technology. Results indicate that with increasing of strain amount, the texture of {0002}//ED is strengthened obviously, and intragranular sliding plays a main role during the accommodated deformation. Twins have started at the medium and the final deformation stages; when approaching to failure, intragranular sliding vanishes, and twins replace it to play a main role. But the contribution of twins to deformation is relatively small

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吳立鴻,王鐵豹,王 盼,王利國,關(guān)紹康. EBSD Study on the Superplastic Deformation of Mg-7.0Al-0.4Zn Magnesium Alloy[J].稀有金屬材料與工程,2011,40(11):1887~1890.[Wu Lihong, Wang Tiebao, Wang Pan, Wang Liguo, Guan Shaokang. EBSD Study on the Superplastic Deformation of Mg-7.0Al-0.4Zn Magnesium Alloy[J]. Rare Metal Materials and Engineering,2011,40(11):1887~1890.]
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  • 收稿日期:2010-11-26
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