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Influence of the preheated substrate temperature on the microstructure deposition behavior of the 304 stainless steel coatings deposited by cold gas dynamic spraying

Influence of the preheated substrate temperature on the microstructure deposition behavior of the 304 stainless steel coatings deposited by cold gas dynamic spraying
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摘要 The effects of the substrate temperature on the deposition and microstructure of the 304 stainless steel （SS） cold gas dynamic spraying （CGDS） coatings were investigated. It was found that the higher substrate temperature could increase the deposition rate of the 304 SS particles,even the oxide films existed at the interface. There was a critical oxide film with a thickness of 3 -4 um which could be destroyed by the impacted particles. The micro-hardness and microstructure of the 304 SS coatings under different substrate preheating temperatures were almost the same. The effects of the substrate temperature on the deposition and microstructure of the 304 stainless steel （SS） cold gas dynamic spraying （CGDS） coatings were investigated. It was found that the higher substrate temperature could increase the deposition rate of the 304 SS particles,even the oxide films existed at the interface. There was a critical oxide film with a thickness of 3 -4 um which could be destroyed by the impacted particles. The micro-hardness and microstructure of the 304 SS coatings under different substrate preheating temperatures were almost the same.
作者 MENG Xianming ZHANG Junbao LIANG Yongli ZHAO Jie
机构地区 School of Materials Science and Engineering Advanced Technology Division
出处 《Baosteel Technical Research》 CAS 2011年第1期35-40,共6页 宝钢技术研究（英文版）
关键词 cold gas dynamic spraying （CGDS） substrate temperature DEPOSITION 304 stainless steel （SS） cold gas dynamic spraying （CGDS） substrate temperature deposition 304 stainless steel （SS）
分类号 TG142.71 [金属学及工艺—金属材料] TN304.22 [电子电信—物理电子学]
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参考文献14

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Baosteel Technical Research
2011年 第1期

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