大规格铌钨合金棒材锻造工艺研究
Study on Forging Process of Large Sized Niobium Tungsten Alloy Bars
夏明星， 郑欣， 李中奎， 张军良
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作者单位：（西北有色金属研究院，陕西 西安 710016）
中文关键字：铌钨合金； 锻造； 镦粗；力学性能
英文关键字： niobium tungsten alloy; forging; upsetting; mechanical properties
中文摘要：研究了不同锻造工艺对新型铌合金Nb-W-Mo-Zr棒材的组织和力学性能的影响。结果表明，对于小规格?准63mm Nb-W-Mo-Zr铌合金棒材，采用摔锻拔长即可满足要求；而对于大规格?准77 mm Nb-W-Mo-Zr铌合金棒材，通过改变锻造方式，采用两次镦粗+拔长工艺可以使得?准77 mm的棒材达到与?准63 mm棒材摔锻拔长工艺相当的组织和室温力学性能。
英文摘要：The effects of different forging processes on microstructure and mechanical properties of new type Nb-W-Mo-Zr alloy were studied. The results show that the required mechanical properties of small-sized Nb-W-Mo-Zr-Nb alloy bars can be realized by using drawing process; for large-sized Nb-W-Mo-Zr-Nb alloy bars, by using upsetting deformation combined with drawing process, the same result can be achieved.