摘要
针对GH3536高温合金开展研究,以提供一种用于小芯格且薄壁的高温合金蜂窝的高强度钎焊工艺。采用芯格内切圆直径为0.8 mm、蜂窝壁厚为0.05 mm的GH3536蜂窝,使用BNi2粘带钎料,优化了钎料用量、分析了不同钎料用量对应钎焊蜂窝界面组织形貌,并测试了GH3536蜂窝元件的拉伸性能、压缩性能及弯曲强度,评价GH3536蜂窝元件的基础力学性能。结果表明,所获得蜂窝结构焊合率达到99.5%;钎焊蜂窝界面晶粒细小、组织均匀、无钎缝溶蚀;GH3536蜂窝元件具有优异强韧性、平面抗拉强度达到50 MPa。
The study on GH3536 superalloy was carried out to provide a high-strength brazing process for small core grid cutting thin-walled superalloy honeycomb.GH3536 honeycomb with inner tangent circle diameter of 0.8 mm and honeycomb wall thickness of 0.05 mm was adopted.BNi2 adhesive brazing filler metal was used to optimize amount of brazing filler metal and analyze microstructure of brazed honeycomb interface corresponding to different amount of brazing filler metal.Tensile properties,compressive properties and bending strength of GH3536 honeycomb component were tested to evaluate its basic mechanical properties.The result showed that welding rate of honeycomb structure reached 99.5%.Brazed honeycomb interface had fine grains,uniform microstructure and no brazing seam corrosion.GH3536 honeycomb component had excellent strength and toughness,and plane tensile strength reached 50 MPa.
作者
静永娟
贾崇林
刘尧
李思思
尚泳来
Jing Yongjuan;Jia Chonglin;Liu Yao;Li Sisi;Shang Yonglai(Welding and Plastic Forming Division,Aero Engine Corporation of China Beijing Institute of Aeronautical Materials,Beijing 100095,China;Key Laboratory of Advanced High Temperature Structural Materials,Aero Engine Corporation of China Beijing Institute of Aeronautical Materials,Beijing 100095,China)
出处
《焊接》
北大核心
2023年第3期22-26,共5页
Welding & Joining
基金
国家自然科学基金项目(51804286)
北京市自然科学基金项目(3212014)
装备预先研究基金项目(6141C26)。
关键词
GH3536合金
蜂窝结构
钎焊
界面组织
强度
GH3536 superalloy
honeycomb structure
brazing
interface microstructure
strength
