燕山大学学报Issue(3)：216-220,5.DOI:10.3969/j.issn.1007-791X.2014.03.005
激光熔覆ZrO2-8%Y2O3涂层提高轧辊抗热冲击性能的研究
Improving rolls' thermal shock resistance by laser cladding ZrO2-8%Y2O3 coating
摘要
Abstract
In order to extend the liquid core heavy reduction mill rolls' life and improve the slab continuous casting and rolling pro-duction efficiency, ZrO2-8%Y2O3 thermal barrier coating can be sprayed on the surface of rolls to improve its thermal shock resis-tance. In this paper, the difference of surface§ion morphology and thermal shock resistance between the sample with plasma sprayed ZrO2-8%Y2O3 coating and the sample with laser cladding ZrO2-8%Y2O3 coating are analyzed using comparative experi-ments. The analyzing results show that pores and cracks of the laser cladding coating decrease obviously. The bonding strength between the base and coating are increased significantly. The thermal shock resistance of rolls with laser cladding coating is incre-ased 2.94 times of that with plasma sprayed coating.关键词
ZrO2-8%Y2O3/等离子喷涂/激光熔覆/抗热冲击性Key words
ZrO2-8%Y2O3/plasma spraying/laser cladding/thermal shock resistance分类
矿业与冶金引用本文复制引用
孙登月,侯广义,张军营..激光熔覆ZrO2-8%Y2O3涂层提高轧辊抗热冲击性能的研究[J].燕山大学学报,2014,(3):216-220,5.基金项目
河北省自然基金资助项目 （）
