韩志兵,朱世根,齐小犇,许新军,丁浩.纳米和微米 WC / 12 Co 涂层的电接触强化研究[J].表面技术,2013,42(4):17-20.
HAN Zhi-bing,ZHU Shi-gen,QI Xiao-ben,XU Xin-jun,DING Hao.Study on Performance of Nano-WC / 12 Co and Micro-WC / 12 Co Coating by Electric Contact Strengthening[J].Surface Technology,2013,42(4):17-20
纳米和微米 WC / 12 Co 涂层的电接触强化研究
Study on Performance of Nano-WC / 12 Co and Micro-WC / 12 Co Coating by Electric Contact Strengthening
投稿时间:2013-03-21  修订日期:2013-04-15
DOI:
中文关键词:  WC-12 Co 涂层  电接触强化  抗热震性能  冶金结合
英文关键词:WC-12 Co coating  electric contact strengthening  thermal shock  metallurgic bonding
基金项目:上海市重点学科建设资助项目( B602)
作者单位
韩志兵 东华大学 机械工程学院, 上海 201620 
朱世根 东华大学 机械工程学院, 上海 201620 
齐小犇 东华大学 机械工程学院, 上海 201620 
许新军 东华大学 机械工程学院, 上海 201620 
丁浩 东华大学 机械工程学院, 上海 201620 
AuthorInstitution
HAN Zhi-bing College of Mechanical Engineering, Donghua University, Shanghai 201620 , China 
ZHU Shi-gen College of Mechanical Engineering, Donghua University, Shanghai 201620 , China 
QI Xiao-ben College of Mechanical Engineering, Donghua University, Shanghai 201620 , China 
XU Xin-jun College of Mechanical Engineering, Donghua University, Shanghai 201620 , China 
DING Hao College of Mechanical Engineering, Donghua University, Shanghai 201620 , China 
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中文摘要:
      分别以微米和纳米 WC-12 Co 粉末为原料配制液态涂料,喷涂于 45 钢表面形成预喷涂层,再利用电接触表面强化技术对预喷涂层进行强化,获得强化层。 观察了强化层的微观形貌,测定了强化层的硬度,分析了强化层的相组成和元素组成、抗热震性能。 结果表明:强化层组织致密,硬度高,抗热震性能优异;强化过程中,预喷涂层与基材间发生了元素扩散,从而形成了冶金结合;与微米粉末制备的强化层相比,纳米粉末制备的强化层有更高的硬度和更好的抗热震性能。
英文摘要:
      Based on an air spraying method, micro-WC-12 Co powder and nano-WC-12 Co powder were deposited on 45 steel respectively. Then the electrical contact strengthened equipment was used to remelt the coatings and the enhancement layers were formed on the substrate surface. The microstructure, hardness and thermal shock performance of the enhancement layers were investigated; The chemical composition and phase constitution of the enhancement layers were analyzed. The results show that the microstructure of enhancement lays are compact . And the enhancement layers poss high hardness and excellent thermal shock resistance. In the process of strengthening, the element diffusion in the interface shows that the metallurgic bonding is formed. Through compared with Micro-WC-12 Co Strengthening layer, nano-WC-12 Co strengthening layer has higher micro-hardness and more excellent thermal shock resistance.
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