替代扩散合金化粉末的粘结剂处理粉的研制

THE DEVELOPMENT OF BINDER-TREATED ALTERNATIVES TO DIFFUSION ALLOYED POWDERS

为替代扩散-合金化粉末,研制了巧妙设计的粘结剂处理的预混合粉。一类粘结剂处理的材料,符合MPIF标准35"粉末冶金结构零件材料标准"中扩散-合金化材料的化学组成范围。另一类粘结剂处理的预混合粉,是用来替代高性能扩散-合金化材料的,这些材料都是以含Mo1.5%(质量分数)的预合金化低合金钢为基体的。考察了新材料的烧结态和淬火-硬化与回火状态的性能,并将之和化学组成相似的扩散-合金化材料进行了比较。

Engineered binder-treated premixes have been developed as alternatives to diffusionalloyed powders. One family of binder-treated materials meets the chemical composition limits for diffusion-alloyed materials listed in MPIF Standard 35, Materials Standards for P/M Structural Parts. A second family of engineered binder-treated premixes has been developed as an alternative to high performance diffusion-alloyed materials that are based on prealloyed low-alloy steels containing 1.5 weight percent molybdenum. The as-sintered and the quenchhardened and tempered performance of the new materials will be reviewed and compared with diffusion-alloyed materials of similar chemistry.