添加超细镍粉对铁基齿轮烧结工艺及性能的影响

Effect of superfine Ni powder addition on the sintering process and final properties of driven gears

研究了经超细化处理的镍粉对从动齿轮烧结工艺和性能的影响。观察分析了合金的显微组织结构,测试了其力学性能。结果表明,经高能球磨超细化处理后的镍粉可有效地活化烧结,促进扩散均匀化,使从动齿轮的烧结工艺由1200℃保温2h降为1130℃保温1h,而其性能基本不变。

Effect of superfine Ni powder addition on the sintering process and final properties of driven gears was studied. Results show that the superfine Ni powder prepared by high - energy ball milling can activate the sintering. With the superfine Ni powder and sintering at 1130℃×1h, the final mechanical properties of the driven gears are almost the same as that of parts with the ordinary Ni powder and sintering at 1200℃× 2h.