摘要:研究了Fe-Mo-B预合金粉的含量对温压铁基材料烧结硬化后试样的密度、尺寸精度、表观硬度和抗拉强度以及显微组织的影响.结果表明:混合粉中加入一定量的Fe-Mo-B预合金粉,利用温压工艺压制成形后烧结硬化,可有效提高试样的力学性能并可获得典型贝氏体组织.烧结试样密度最高为7.49g/cm3,其相对密度为97.74%;表观硬度最高可达44 HRC,抗拉强度为1434 Mpa.
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