Abstract：Al2CoCrCu0.5FeMoNiTi high-entropy alloy laser cladding coating was synthesized on stainless steel and 40Cr steel with laser cladding equipment. The coating was annealed and stretched， and was tested by X-ray diffractometer， scanning electron microscope and microhardness tester. Results show that the coating shows granular structure after polishing and aqua regia corrosion. The hardness of the coating is not affected by annealing at 300 ℃， while the hardness of the coating increases after annealing at 500-700 ℃， indicating that the coating has an aging effect. The cladding coating is composed of bcc single phase， and the coating maintains a stable phase structure after annealing at 300 ℃. After tensile deformation， the diffraction peak intensity of the coating increases and the grain boundary is clear. The hardness decreases firstly and then increases with the increase of deformation. The coating has good adhesion， except that the coating near the fracture surface is peeling.
收稿日期: 2016-09-20
出版日期: 2018-04-18
基金资助:广东省自然科学基金
通讯作者:
黄元盛
E-mail: nightofgz@163.com
引用本文:
温立哲，黄元盛，林津文. 拉伸变形对高熵合金激光涂层组织和性能的影响[J]. , 2018, 28(02): 45-48.
WEN Li-zhe，HUANG Yuan-sheng，LIN Jin-wen. Effect of tensile deformation on the microstructure and properties of high-entropy alloy laser cladding coating. , 2018, 28(02): 45-48.
2018, Vol. 28 
