中国物理B ›› 2016, Vol. 25 ›› Issue (2): 26103-026103.doi: 10.1088/1674-1056/25/2/026103
• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇 下一篇
Innovative technologies for powder metallurgy-based disk superalloys: Progress and proposal
Chong-Lin Jia(贾崇林), Chang-Chun Ge(葛昌纯), Qing-Zhi Yan(燕青芝)
- 1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Science and Technology on Advanced High Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials, Beijing 100095, China
Innovative technologies for powder metallurgy-based disk superalloys: Progress and proposal
Chong-Lin Jia(贾崇林)1,2, Chang-Chun Ge(葛昌纯)1, Qing-Zhi Yan(燕青芝)1
- 1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Science and Technology on Advanced High Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials, Beijing 100095, China
摘要：
Powder metallurgy (PM) superalloys are an important class of high temperature structural materials, key to the rotating components of aero engines. In the purview of the present challenges associated with PM superalloys, two novel approaches namely, powder preparation and the innovative spray-forming technique (for making turbine disk) are proposed and studied. Subsequently, advanced technologies like electrode-induction-melting gas atomization (EIGA), and spark-plasma discharge spheroidization (SPDS) are introduced, for ceramic-free superalloy powders. Presently, new processing routes are sought after for preparing finer and cleaner raw powders for disk superalloys. The progress of research in spray-formed PM superalloys is first summarized in detail. The spray-formed superalloy disks specifically exhibit excellent mechanical properties. This paper reviews the recent progress in innovative technologies for PM superalloys, with an emphasis on new ideas and approaches, central to the innovation driving techniques like powder processing and spray forming.
中图分类号: (Powders, porous materials)
- 61.43.Gt