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.
作者
王东君
邱高松
王帅
高天翼
赵杰
刘钢
苑世剑
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)
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)。
