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直流磁場對Mg97Y2Cu1合金凝固組織、結(jié)晶織構(gòu)及力學性能的影響
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南昌航空大學 航空制造工程學院,南昌航空大學航空制造工程學院,南昌航空大學航空制造工程學院

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國家自然科學基金項目（51261026）；航空科學基金項目（20125356009）


Effect of DC magnetic field on solidified structure, crystal texture and mechanical properties of Mg97Y2Cu1 alloy
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School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University,School of Aeronautical Manufacturing Engineering,Nanchang Hangkong University,School of Aeronautical Manufacturing Engineering,Nanchang Hangkong University

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    摘要:

    本文研究了0~1.2T的直流磁場對長周期結(jié)構(gòu)增強Mg97Y2Cu1合金凝固組織、結(jié)晶織構(gòu)及力學性能的影響。研究結(jié)果表明：直流磁場可以細化合金的初生相，減少α-Mg基體中Y元素的含量。隨著磁場強度的增加， 面織構(gòu)先加強后減弱，其轉(zhuǎn)折點為0.9T， 面織構(gòu)逐漸增強；合金的鑄態(tài)抗拉強度和伸長率總體上逐漸提高，當磁場強度為0.9T時，合金的綜合力學性能最好，其抗拉強度和伸長率較無磁場處理的試樣相比分別提高了96.6％和61.1％。

    Abstract:

    Solidified structure, crystal texture and mechanical properties of Mg97Y2Cu1 alloy reinforced by long period ordered structure under DC magnetic field(0~1.2T) were studied. The results show that primary grain size and content of Y in matrix of the alloy decrease with DC magnetic field treatment. With the increase of magnetic field strength, the plane texture enhances firstly, then weakens, and the turning point is 0.9T, the plane texture enhances gradually. The strength and elongation of the alloy increase gradually in general. When the magnetic field strength is 0.9T, comprehensive mechanical properties of the alloy are the best. Tensile strength and elongation of the alloy are increased by up to 96.6% and 61.1%, respectively, compared with the sample without treatment.

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譚水淋,周全,陳樂平.直流磁場對Mg97Y2Cu1合金凝固組織、結(jié)晶織構(gòu)及力學性能的影響[J].稀有金屬材料與工程,2016,45(4):934~939.[tanshuilin, zhouquan, chen leping. Effect of DC magnetic field on solidified structure, crystal texture and mechanical properties of Mg97Y2Cu1 alloy[J]. Rare Metal Materials and Engineering,2016,45(4):934~939.]
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  • 收稿日期:2014-04-21
  • 最后修改日期:2014-06-04
  • 錄用日期:2014-07-01
  • 在線發(fā)布日期: 2016-06-02
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