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		合金元素Hf, Sn, Ta, Zr, Dy和Ho对Nb-Nb5Si3合金组织和力学性能的影响*
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			EFFECT OF Hf, Sn, Ta, Zr, Dy AND Ho ON MICRO- STRUCTURE AND MECHANICAL PROPERTIES OF Nb-Nb5Si3 ALLOY
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| 图9. 不同Zr含量的Nb-22Ti-16Si合金的BSE像[11] | 
| Fig.9. BSE images of Nb-22Ti-16Si alloy with Zr contents of 0 (a), 2% (b) and 4% (c)[11] | 
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