过滤材料用Fe_(3)Al合金粉水雾化制备工艺  

Water atomization preparation of Fe_(3)Al alloy powder for filter material

作　　者：王峻[1,2] 匡星 丁福昌[1] 霍光[1] 周欣[1,2] WANG Jun;KUANG Xing;DING Fuchang;HUO Guang;ZHOU Xin(Advanced Technology&Materials.Co.,Ltd,Beijing 100081,China;ATTL Advanced Materials Co.,Ltd.,Beijing 100094,China)

机构地区：[1]安泰科技股份有限公司,北京100081 [2]安泰天龙钨钼科技有限公司,北京100094

出　　处：《粉末冶金工业》2023年第6期12-18,37,共8页Powder Metallurgy Industry

摘　　要：采用两种水雾化方式制备了Fe_(3)Al合金粉末,对比了改进水雾化和常规水雾化粉末的氧含量、形貌、粒度、显微金相和相结构等参数,并对改进水雾化粉末表层元素分布状态进行了俄歇分析。结果表明,改进水雾化法制备粉末,氧含量更低,粉末团聚更剧烈,晶粒更细化。但两种方式粉末相结构相似,均无明显成分偏析。Fe_(3)Al粉末表面发生了选择性氧化,形成致密的Al_(2)O_(3)氧化膜。Two different water atomization methods were used to prepare Fe_(3)Al alloy powder. The improved water atomized powder and conventional water atomized powder were compared in terms of oxygen content,morphology, particle size distribution, microstructure and phase structure. Auger electron spectroscopy was also conducted to analyze the surface elemental distribution of the improved water atomized Fe_(3)Al powder.The results show that the improved water atomized Fe_(3)Al powder has lower oxygen content,more severe powder agglomeration,and more fine grains. However,the two types of Fe_(3)Al powder have similar phase structures with no significant compositional segregation.Selective oxidation occurred on the Fe_(3)Al powder surface, forming a dense Al_(2)O_(3) oxide film.

关 键 词：Fe_(3)Al粉 改进水雾化 氧含量 形貌 表面状态 

分 类 号：TF123[冶金工程—粉末冶金]