(1. 北京工業(yè)大學 材料科學與工程學院，北京 100124；
2. 蘭州理工大學 材料科學與工程學院，蘭州 730050)
摘 要: 采用熱等靜壓(HIP)法制備芯層為Ni-12%W(Ni12W，摩爾分數)合金、外層為Ni-5%W(Ni5W，摩爾分數)合金的Ni5W/Ni12W/Ni5W 3層復合初始坯錠；采用壓延輔助雙軸織構技術(RABiTSTM)通過直接冷軋及再結晶退火獲得Ni5W/Ni12W/Ni5W復合基帶；采用X射線四環(huán)衍射技術(XRD)及背散射電子衍射技術(EBSD)對復合基帶表面冷軋及再結晶織構進行分析。結果表明：冷軋復合基帶表面形成較強的銅型形變織構，再結晶退火后復合基帶表面形成銳利的立方織構，其立方織構含量達到99.1%(≤10°)，與商業(yè)用Ni5W合金基帶水平相當。
關鍵字: 鎳基復合基帶；熱等靜壓；銅型織構；立方織構
high cube texture using hot isostatic presses method
TIAN Hui1, LIU Min1, YUAN Dong-mei1, WANG Ying-xia1<
（1. College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China;
2. College of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China）
Abstract:A tri-layer composite alloy ingot was fabricated by hot isostatic presses (HIP) method, in which the outer layer is Ni-5%W(Ni5W, mole fraction) alloy and the inner layer is Ni-12%W(Ni12W, mole fraction) alloy. The composite ingot was cold-rolled using the process of rolling assisted biaxially textured substrate (RABiTSTM) technology and annealed to obtain the Ni5W/Ni12W/Ni5W composite substrate with high cube texture. The cold rolling and the recrystallization textures on the surface of the as-obtained composite substrate were studied systematically by X-ray and EBSD measurements. The results show that a strong deformation copper-type texture is obtained in the cold rolled composite substrate, and a sharp cube texture is formed on the surface of Ni5W/Ni12W/Ni5W composite substrate after a recrystallization annealing process. The percentage of the cube orientated grain within a misorientation angle of 10° is as high as 99.1%, which is in the same level as that of the commercial Ni5W tape.
Key words: Ni-based composite substrate; hot isostatic press; copper-type texture; cube texture
