高校化学工程学报2016，Vol.30Issue(2)：466-471,6.DOI:10.3969/j.issn.1003-9015.2016.02.031
丙烷对爆炸喷涂碳化钨涂层结构和力学性能的影响
Influence of Propane on Structure and Mechanical Properties of Detonation Gun Sprayed Tungsten Carbide Coatings
摘要
Abstract
Propane has uniform heat energy distribution with flame temperature (500℃) lower than acetylene. Coatings with high hardness and dense microstructure were obtained via optimization of spray parameters and adding propane in oxyacetylene gas. The effects of propane on structure and mechanical properties of WC-10Co4Cr coatings prepared by detonation gun spray process were investigated by X-ray diffraction (XRD), energy dispersive spectrometer (EDS), metallurgical microscope and Vickers microhardness meter. The results show that propane can reduce oxidation and decarburization of tungsten carbide coating. With the increase of propane gas flow, the hardness and the bonding strength of the coatings increase first and then decrease, while the porosity shows the opposite. The coating performance reaches optimum when the propane flow rate is 3.3 L⋅min−1, and the cross section Vickers microhardness is 13.08 GPa, with porosity and bonding strength of 0.8% and 150 MPa, respectively.关键词
丙烷/爆炸喷涂/碳化钨涂层/维氏显微硬度/孔隙率Key words
propane/detonation gun spraying/tungsten carbide coating/Vickers microhardness/porosity分类
矿业与冶金引用本文复制引用
赵立英,刘平安,代洪川..丙烷对爆炸喷涂碳化钨涂层结构和力学性能的影响[J].高校化学工程学报,2016,30(2):466-471,6.基金项目
国防科工局军品配套项目(JPPT-125-2-168)；国家863计划资助项目(2013AA030804)。 （JPPT-125-2-168）
