Effects of Mo Contents in Matrix on Microstructure and Properties of Vanadium Carbide Coating Formed by Thermal Diffusion Treatment

• Published in: Journal of iron and steel research, international Vol. 21; no. 1; pp. 104 - 108
• Main Authors: HUANG, Zhi-tao, TIAN, Wen-huai
• Format: Journal Article
• Language: English
• Published: Singapore Elsevier Ltd 2014; Springer Singapore
• Subjects: Applied and Technical Physics; carbide forming element; Coating; Die steels; Diffraction; Engineering; grain refinement; Iron and steel industry; Machines; Manufacturing; Materials Engineering; Materials Science; mechanical property; Metallic Materials; Physical Chemistry; Processes; salt-bath; Scanning electron microscopy; Spectrum analysis; Thermal diffusion; Vanadium carbide; X-射线衍射分析; 涂层性能; 热扩散处理; 矩阵; 碳化物形成元素; 碳化钒; 组织; 钼含量; salt-bath; grain refinement; mechanical property; carbide forming element; vanadium carbide
• ISSN: 1006-706X; 2210-3988
• DOI: 10.1016/S1006-706X(14)60016-9

Thermal diffusion salt-bath vanadizing was finished for Crl2MoV die steel, in order to investigate the properties of vanadium carbide coatings related with the Mo contents in Crl2MoV die steel. Scanning electron micro- scopic observation reveals that Mo can decrease the growth rate of coating as a carbide forming element. Besides, Mo element can promote grain refinement of the coating. X-ray diffraction analysis shows that the different Mo contents have no influence on the phase structure of the coatings. Energy dispersive spectrum analysis and mechanical properties test show that Mo can diffuse into the coating and make a strengthening effect on the coating.