| 摘要: |
| 利用金属导体NiAl系合金箔，电热爆炸产生的瞬间高能量冲击波效应，制备NiAl、NiCrAlRE两种等离子体喷涂层。通过涂层SEM等检测，可以看出涂层具有纳米晶、微米晶组织结构，同时涂层与基体可以形成冶金结合层，涂层与基体之间存在明显的过渡层。经高温氧化、氯化、硫化耐蚀性测试，得出两种等离子体喷涂层的腐蚀变化规律，从而优选出耐高温腐蚀的NiCrAlRE电热爆炸等离子体涂层。 |
| 关键词: 电热爆炸 NiCrAlRE 耐高温腐蚀 |
| DOI： |
| 分类号: |
| 基金项目:国家863计划项目（2003AA331130） |
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| Electro-thermal Explosion Plasma Spray Coating of NiAl base |
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WEI Shi-cheng，XU Bin-shi，WANG Hai-dou，JIN Guo
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Academy of Armored Force Engineering, National Key Laboratory for Remanufacturing Technology，Beijing 100072 China
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| Abstract: |
| Prepare two kinds of plasma spray coatings: NiAl and NiCrAlRE, by using instantaneous high-energy shock wave effect produced by electro-thermal explosion of metal conductor alloy foil of NiAl base. It is shown that spray coatings possess nano-structure and micro-structure, meanwhile coating can form a metallurgy binding layer with its base body, and there is an evident buffer layer between coating and its base body. Corrosion changing rule of these two plasma spray coatings can be gained after anti-corrosion testes under the conditions of high temperature oxidation, chloridization, and sulfuration, and then sequentially select better NiCrAlRE electro-thermal explosion plasma spray coating of anti-corrosion and heat resistance. |
| Key words: electro-thermal explosion NiCrAlRE anti-corrosion and heat resistance |
