(北京工業(yè)大學(xué) 材料科學(xué)與工程學(xué)院，北京 100124)
摘 要: 采用真空感應(yīng)熔煉方法制備一種無磁性且表面具有銳利立方織構(gòu)的Ni-12%V(Ni12V，摩爾分?jǐn)?shù))金屬合金基帶，并對其性能進(jìn)行表征。通過不同的軋制工藝研究大變形量冷軋前熱軋?zhí)幚韺Τ跏寂麇V形變織構(gòu)的影響。結(jié)果表明：經(jīng)大變形量冷軋后基帶表面形成了高層錯(cuò)能材料所具有的銅型形變織構(gòu)，通過優(yōu)化的再結(jié)晶工藝獲得立方織構(gòu)含量為97.2%(＜10°)的Ni12V合金基帶，小于10°的小角度晶界含量占總晶界長度的80.8%。先熱軋?jiān)倮滠堄欣诟纳屏⒎娇棙?gòu)的形成，也為進(jìn)一步優(yōu)化其它Ni基合金基帶提供了依據(jù)。
關(guān)鍵字: NiV合金基帶；熱軋；形變織構(gòu)；立方織構(gòu)
（College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China）
Abstract:A non-magnetic and high cube textured Ni-12%V(Ni12V, mole fraction) alloy substrate was developed by melting method. The fabrication processes of this tape and its essential characterizations were presented. The influence of hot rolling process before the large deformation on deformation texture of initial ingots was investigated by rolling technology. The results show that, after the optimized recrystallization annealing method, the cube texture content (＜10°) as high as 97.2% and the fraction of small angle (＜10°) grain boundaries as high as 80.8% are obtained in the Ni12V tape. The hot rolling before cold rolling is effective to improve the cube texture content, which is expected to provide a theoretical basis for fabricating other nickel-based alloy substrates.
Key words: NiV alloy substrate; hot rolling process; deformation texture; cube texture
