Mo对于Nb/Nb5Si3原位复合材料室温韧性的影响

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材料工程 ›› 2004, Vol. 0 ›› Issue (4) : 31-33,48.

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研究与应用

Mo对于Nb/Nb₅Si₃原位复合材料室温韧性的影响

李伟, 杨海波, 单爱党, 吴建生

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Effect of Mo Addition on the Fracture Toughness of Nb/Nb₅Si₃ in situ Composites

LI Wei, YANG Hai-bo, SHAN Ai-dang, WU Jian-sheng

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文章历史 +

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.

Abstract

Nb/Nb₅Si₃ in situ composites were prepared by arc melting and heat-treated at 1200℃ 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.

导出引用

李伟, 杨海波, 单爱党, 吴建生. Mo对于Nb/Nb₅Si₃原位复合材料室温韧性的影响[J]. 材料工程, 2004, 0(4): 31-33,48

LI Wei, YANG Hai-bo, SHAN Ai-dang, WU Jian-sheng. Effect of Mo Addition on the Fracture Toughness of Nb/Nb₅Si₃ in situ Composites[J]. Journal of Materials Engineering, 2004, 0(4): 31-33,48

中图分类号： TG146.4

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