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Mo对于Nb/Nb_5Si_3原位复合材料室温韧性的影响 被引量：10

Effect of Mo Addition on the Fracture Toughness of Nb/Nb_5Si_3 in situ Composites
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摘要 利用真空电弧熔炼制备了Nb/Nb5Si3复合材料,在1200℃×100h热处理后,利用单边切口悬臂梁法 (SENB)测定了Nb-Si合金的室温断裂韧性。研究了合金化元素Mo对Nb/Nb5Si3复合材料微观结构和室温韧性的影 响。结果发现适量Mo的加入明显地改善了Nb-18Si的室温韧性。 Nb/Nb5Si3 in situ composites were prepared by arc melting and heat treatment at 1200°C for 100 hours. Single edge notched bending (SENB) test was preformed to study the fracture toughness of Nb-Si-Mo alloys. The result reveals that the room temperature fracture toughness of the Nb/Nb5Si3 in situ composites are improved with Mo addition.
作者 李伟 杨海波 单爱党 吴建生
机构地区 上海交通大学
出处 《材料工程》 EI CAS CSCD 北大核心 2004年第4期31-33,48,共4页 Journal of Materials Engineering
基金 国家自然科学基金资助项目(50131030)
关键词 Nb/Nb5Si3原位复合材料 MO 室温韧性 亚稳相 单边切口悬臂梁法 微观结构 Nb/Nb5Si3 in-situ composites fracture toughness metastable phase SENB
分类号 TG146.416 [金属学及工艺—金属材料]
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参考文献15

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二级参考文献23

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引证文献10

二级引证文献28

材料工程
2004年 第4期

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