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中文摘要: 采用固体粉末渗铝方法在镍包覆复合粉的镍层中引入铝成分,使其均匀分布.研究了热处理温度、保温时间、保护气氛及所采用的固体铝粉原料对渗入效果的影响.对热渗入之后的粉末进行表面形貌观测,表明采用低氧含量的超细铝粉在氢气保护气氛下进行热处理可使渗入元素分布均匀,粉末表面形貌球形度好,粉末流动性能好.
Abstract:The aluminum was infiltrated into nickel layer of nickel-coated composite powders via power calorizing,which made it distribute uniformly.The effect of heat treatment temperature,holding time, protective atmosphere,and selected aluminum powders on alumetizing were discussed in detail.The scanning electronic microscope(SEM) was used to observe the morphology of surface of the powders.The experimental results show that selecting ultra fine aluminum powders with less oxygen content and hydrozing could make alu...
keywords: Alitizing Nickel-coated powders Heat treatment
文章编号： 中图分类号：TG174.44 文献标志码：
基金项目:
JI Xiao-juan ZENG Ke-li ZHANG xin
JI Xiao-juan,ZENG Ke-li,ZHANG xin (Sub-Institute of Metal Materials,Beijing General Research Institute of Mining , Metallurgy,Beijing 100044,China)
引用文本：
冀晓鹃,曾克里,张鑫.热喷涂用镍包覆粉末表面渗铝工艺(英文)[J].有色金属（冶炼部分）,2008(Z1):.
.Alitizing Process of Nickel-Coated Powders for Thermal Spraying[J].Nonferrous Metals (Extractive Metallurgy),2008(Z1):.
冀晓鹃,曾克里,张鑫.热喷涂用镍包覆粉末表面渗铝工艺(英文)[J].有色金属（冶炼部分）,2008(Z1):.
.Alitizing Process of Nickel-Coated Powders for Thermal Spraying[J].Nonferrous Metals (Extractive Metallurgy),2008(Z1):.
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