铸造技术2012，Vol.33Issue(5)：547-549,3.
镍铝材料状态对火焰喷涂层组织结构和性能的影响
Effect of Nickel-Aluminium State on Constitution and Properties of Flame-sprayed Coatings
李文兴 1雷阿利2
作者信息
- 1. 宝鸡北马坊煤业有限责任公司,陕西宝鸡721500
- 2. 西安理工大学材料科学与工程学院,陕西西安710048
- 折叠
摘要
Abstract
Aiming at the actual instance of low bonding strength of thermal spray coating in the restoration of hydraulic props for mining machinery, new developed nickel-aluminum alloy wire was utilized to deposite Ni-Al coating on 27SiMn steel substrate by flame spraying. The microstnicture, morphology and bonding strength of the coating was compared with those of the coatings prepared with nickel coated aluminium powders and composite nickel-aluminium wire. The results show that the metallurgical bonding exists as the main bonging between the coating prepared with pre-alloyed nickel-aluminium and the substrate, and the bond strength is improved by 46.8% and 8%, respectively, compared with that of nickel coated aluminium powder and composite nickel-aluminium wire. The prepared coating is compact in constitution, with less porosity and impurity.关键词
火焰喷涂/镍铝合金丝/过渡涂层/结合强度Key words
flame thermal spraying/ pre-alloyed nickel-aluminium wire/ bond layer/ bond strength分类
金属材料引用本文复制引用
李文兴,雷阿利..镍铝材料状态对火焰喷涂层组织结构和性能的影响[J].铸造技术,2012,33(5):547-549,3.
