王晶辉,陈闻超,陈鹏起,程继贵

• 1:合肥工业大学材料科学与工程学院
• 2:安徽省粉末冶金工程技术研究中心

摘要(Abstract)：

分别采用元素混合粉和钼包铁粉将钼元素引入到Fe-2Cu-1Mo-0.8C成形混合料中,经压制烧结后得到烧结体,考察了两种钼元素引入方式对粉末工艺性能及烧结体显微组织和力学性能的影响。结果表明,由钼包铁粉所制备的Fe-2Cu-1Mo-0.8C成形混合料松装密度和流动性都优于元素混合粉末,分别提高了0.22 g/cm~3和2.14 s/50 g。经800 MPa压力压制后,由钼包铁粉制备的压坯密度为7.29 g/cm~3,于1150℃烧结90 min后得到烧结体的密度为7.26 g/cm~3。烧结体的显微组织以珠光体和铁素体为主,由钼包铁粉制备的烧结体组织更为致密,钼元素在烧结体中分布更均匀,其抗拉强度和硬度分别为533 MPa和98.2 HRB,由元素混合粉制备的烧结体的抗拉强度和硬度分别为501 MPa和93.5 HRB。

关键词(KeyWords)： 铁基粉末冶金;钼包铁粉;显微组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 安徽省科技厅专项项目(PA2018AKQT0029)

作者(Author): 王晶辉,陈闻超,陈鹏起,程继贵

DOI: 10.13289/j.issn.1009-6264.2021-0046

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