Ni/Al叠层薄壁筒形构件热态气压成形工艺  

Hot-gas Processing of Ni/Al Laminated Thin-walled Tubular Component

作　　者：王东君[1,2] 邱高松 王帅[1,2] 高天翼 赵杰 刘钢 苑世剑[1,2] Wang Dongjun;Qiu Gaosong;Wang Shuai;Gao Tianyi;Zhao Jie;Liu Gang;Yuan Shijian(School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001;National Key Laboratory for Precision Hot Processing of Metals,Harbin Institute of Technology,Harbin 150001;Beijing Power Machinery Research Institute,Beijing 100074)

机构地区：[1]哈尔滨工业大学材料科学与工程学院,哈尔滨150001 [2]哈尔滨工业大学金属精密热加工国家级重点实验室,哈尔滨150001 [3]北京动力机械研究所,北京100074

出　　处：《航天制造技术》2024年第4期47-51,共5页Aerospace Manufacturing Technology

基　　金：国家自然科学基金项目(521***98)。

摘　　要：NiAl基合金性能优异,具有成为下一代高温结构材料的潜力。然而,难变形NiAl基合金薄壁筒形构件的成形是阻碍其应用的主要难题。本文基于叠层材料的成形-反应制备工艺,以Ni、Al箔材为原料,首先制备了Ni/Al叠层圆柱筒坯,而后完成了Ni/Al叠层圆柱筒坯两端扩口密封,获得了质量良好、微观组织优异的扩口叠层圆柱筒坯。最终采用热态气压成形方法,制备了Ni/Al叠层圆-方变截面薄壁构件,为Ni/Al叠层薄壁复杂异形构件的成形提供了参考。The NiAl-based alloy has excellent properties and is supposed as the next generation of potentially high-temperature structural materials.However,the processing of the hard-to-deform NiAl-based alloy is the main problem hindering its application.Based on the forming-reactive preparation processing of laminated material,the Ni/Al laminated cylindrical billet is prepared from Ni and Al foils in this paper.Then,the flaring-sealing of Ni/Al laminated cylindrical billet are carried out,and the flaring laminated cylindrical billet with good quality and excellent microstructure is obtained.Finally,the Ni/Al laminated round-square variable section thin-walled component is prepared using hot-gas processing method,which provides a reference for the fabrication of Ni/Al laminated thin-walled complex special-shaped components.

关 键 词：NIAL基合金 薄壁筒形构件 热态气压成形 

分 类 号：V462[航空宇航科学与技术—航空宇航制造工程] TG306[金属学及工艺—金属压力加工]