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邓莉萍,鲁世强,汤斌兵,雷志立,虞文.Mo对NbCr2/ Nb合金组织及性能影响[J].稀有金属材料与工程(英文),2019,48(5):1476~1480.[Deng Li-ping,Lu Shi-qiang,Tang Bin-bing,Lei Zhi-li and Gao Jun.Effect of Mo on Microstructure and properties of NbCr2/Nb Alloy[J].Rare Metal Materials and Engineering,2019,48(5):1476~1480.]
Effect of Mo on Microstructure and properties of NbCr2/Nb Alloy
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Received:January 11, 2018  Revised:February 26, 2018
DOI:
Key words: NbCr2/Nb alloy  alloying element Mo  crystal defects  properties
Foundation item:国家自然科学基金(51074092),江西省自然科学基金(20161BAB206113),江西省教育厅落地计划项目(KJLD14056),江西省教育厅科技计划(GJJ160677)
Author NameAffiliation
Deng Li-ping,Lu Shi-qiang,Tang Bin-bing,Lei Zhi-li and Gao Jun  
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Abstract:
      NbCr2/Nb-XMo (X=0, 2.5, 5.0, 7.5, 10at.%) alloys have been prepared by mechanical alloying and hot pressing. The effects of Mo on microstructures and properties of the NbCr2/Nb alloy have been studied. The results show that the additions of Mo element do not change the phase components of the NbCr2/Nb alloy, which are composed of Nb solid solution and NbCr2. Adding alloying element Mo can increase the stress at the NbCr2 / Nb phase interfaces, which promotes the increase of stacking fault /twinning in the NbCr2 particles and the movement of dislocations in the Nb matrix. The NbCr2 / Nb alloy adding with appropriate amount of alloying element Mo can maintain good plasticity and toughness as well as higher strength.