为分析合金元素对Fe-Ni-Cu-C合金的强化机理,拓宽射孔弹弹体制造技术及材料应用范围,以Fe-Ni-Cu-C合金为对象,研究Cu、Ni、C等元素含量对油田射孔弹弹体用粉末冶金材料组织及性能的影响规律.结果表明:Cu会使基体孔隙率增加,进而降低延伸率;Ni含量的增加使合金中铁素体含量减少而珠光体含量明显增多,合金的抗拉强度和硬度呈增大趋势变化,延伸率在Ni质量分数为3％时达到极值后逐渐减小;在C含量不变的情况下合金延伸率随着Ni含量的增加,出现先增加后降低的趋势变化.
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