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元素W,Co对Ni-Al合金层错能的影响 被引量:7

Influence of Elements W, Co on the Stacking Fault Energy of Ni-Al Alloys
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摘要 运用置换原子计算层错能的热力学模型,计算了Ni-Al-W,Ni-Al-Co合金的层错能。分析了W,Co元素对Ni-6Al合金,Al元素对Ni-5W,Ni-5Co合金层错能的影响。结果表明:随温度升高,合金的层错能提高。随着W,Co质量分数提高,Ni-6Al-xW,Ni-6Al-xCo合金的层错能均提高;随元素Al质量分数的增加,Ni-5Co,Ni-5W合金层错能降低。 Using the thermodynamic model of the substitutional atoms the stacking fault energies (SFE) of Ni-Al-W and Ni-Al-Co alloys were calculated. The influence of elements W and Co on the stacking fault energy of Ni-6Al alloys and the influences of the element Al on SFE of Ni-5W and Ni-5Co alloys have been analyzed. The results show that the stacking fault energies of Ni-Al-W and Ni-Al-Co alloys are enhanced with the increase of temperature. The stacking fault energies of Ni-6AI-xW, Ni-6Al-xCo alloys increase with the increase of mass fractions of elements W and Co. The stacking fault energies for Ni-Co, Ni-W alloys decrease with the increase of element Al mass fraction.
机构地区 沈阳工业大学
出处 《稀有金属材料与工程》 SCIE EI CAS CSCD 北大核心 2007年第12期2148-2151,共4页 Rare Metal Materials and Engineering
基金 国家自然科学基金(50571070)
关键词 层错能 热力学计算 Ni-Al-W(Co)合金 stacking fault energy thermodynamic calculation Ni-Al-W(Co) alloy
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参考文献13

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