| 摘要 |
A mixed powder for powder metallurgy process, comprises prealloy type steel mother powder containing alloy components in a range of 1.5 to 4, alloyed micro powder and Ni powder. A preparation method of iron base sintered compact by blending this mixed powder with graphite powder, compressed powder molding the same and sintering at 1050 to 1250° C., and an iron base sintered compact of high tensile strength and fatigue strength obtained by this preparation method.
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