激光熔覆Ni/Ti-Al2O3涂层组织研究
Applied Laser(2017)
Abstract
采用激光熔覆技术在钛合金基体表面制备了Ni/Ti涂层和Ni/Ti-Al2O3涂层.利用扫描电镜、能谱分析仪和X射线衍射仪对涂层的显微组织、成分和相组成进行了分析.结果表明,涂层与基体的结合区域有明显的光亮线,涂层与基体呈现出良好的冶金结合,涂层的显微组织由白色光亮带组织和黑色组织构成,Ni/Ti涂层中主要的物相有NiTi2和NiTi两相,Ni/Ti-Al2O3涂层主要的物相则为NiTi2、Ti和Al2O3相.
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