扩散合金粉末的制备与性状表征  

Preparation and characterization of diffusion alloy powder

作　　者：李蕊[1] 徐君[2] 李红霞[2] LI Rui;XU Jun;LI Hong-xia(Ordos Vocational College,Ordos 017000,China;University of Science and Technology Liaoning,Anshan 114000,China)

机构地区：[1]鄂尔多斯职业学院,内蒙古鄂尔多斯017000 [2]辽宁科技大学,辽宁鞍山114000

出　　处：《粉末冶金工业》2019年第6期82-85,共4页Powder Metallurgy Industry

摘　　要：本文以鞍钢粉材厂生产的水雾化铁粉(FSY200.3)为原料,钼酸铵、乙酸铜、乙酸镍为包覆剂,通过水溶液浸泡-氢气还原的方法使所需金属均匀扩散于水雾化铁粉表面。实验考察了制取含有被包覆金属铁粉的详细过程;确定了合金粉末Fe-Mo-Ni-Cu生产的最佳工艺条件。对还原后的合金粉末进行了扫描电镜和能谱的表征。用分光光度计检测了合金粉末中各元素的含量。测定了还原后合金粉末的松装密度、流动性、压缩性和氢损等指标。结果表明:水溶液浸泡-氢气还原法制备的合金粉末各项工艺参数均能达到指标要求。将实验制得的合金粉末(HJ)分别添加不同质量分数的碳粉,测其硬度、拉伸强度并与相同条件下的合金粉末(FSY-01K)进行对比,其硬度和拉伸强度均高于传统方法制备的合金粉末。In this paper,water atomized iron powder(FSY200.3)produced by Anshan Iron and Steel Powder Plant is used as raw material,ammonium molybdate,copper acetate and nickel acetate as coating agent,and the required metal is evenly diffused on the surface of water atomized iron powder by water immersion-hydrogen reduction method.The detailed process of preparing iron powder containing coated metal was investigated and the optimum technological conditions for the production of Fe-Mo-Ni-Cu alloy powder were determined.The reduced alloy powders were characterized by scanning electron microscopy(SEM)and energy dispersive spectroscopy(EDS).The content of each element in alloy powder was determined by spectrophotometer.The bulk density,fluidity,compressibility and hydrogen loss of the reduced alloy powder were measured.The results show that all the technological parameters of the alloy powder prepared by water immersion and hydrogen reduction can meet the requirements.The hardness and tensile strength of the alloy powders(HJ)were measured by adding carbon powders with different mass fractions,and compared with those of the alloy powders(FSY-01K)prepared under the same conditions.The hardness and tensile strength of the alloy powders(HJ)were higher than those of the alloy powders prepared by the traditional method.

关 键 词：合金粉末 水溶液浸泡 扩散 表征 

分 类 号：TF123.71[冶金工程—粉末冶金]