公开(公告)号：US20180334738A1

公开(公告)日：2018-11-22

申请号：US15979585

申请日：2018-05-15

申请人： Haidou WANG ,  Zhiguo XING ,  Guozheng MA ,  Lihong DONG ,  Yuelan DI

发明人： Haidou WANG ,  Zhiguo XING ,  Guozheng MA ,  Lihong DONG ,  Yuelan DI

IPC分类号： C23C4/02 ,  C23C4/10 ,  C23C4/134

CPC分类号： C23C4/02 ,  C23C4/10 ,  C23C4/134

摘要： A method and a structure for improving adhesion strength of a coating are provided. The method includes: step 1), preparing textured patterns, where at least one type of pattern is textured on a surface of a substrate using a laser process based on bionics; step 2), regulating a parameter, where a spraying process parameter is regulated based on a parameter of the textured patterns; and step 3), spraying a coating, where spraying is performed on the substrate obtained in step 1) using a supersonic plasma spraying method.

公开(公告)号：US10047014B2

公开(公告)日：2018-08-14

申请号：US15102976

申请日：2015-10-13

申请人： Zhiguo Xing ,  Haidou Wang ,  Lihong Dong ,  Guozheng Ma ,  Binshi Xu

发明人： Haidou Wang ,  Zhiguo Xing ,  Huawei Cui ,  Guo Jin

IPC分类号： C04B35/58 ,  C04B35/622 ,  C04B35/626 ,  C04B35/653 ,  C23C4/02 ,  C23C4/10 ,  C23C4/134 ,  B29C33/56 ,  C04B35/634

摘要： Disclosed is an agglomerated TiN powder, the powder comprising spherical aggregates having particle diameters of 40 to 80 μm and formed by the agglomeration of Ti and N having the atomic fractions of 72% and 28% respectively. Also provided is a TiN coating obtained using the powder. The three-strong-peak phase of the coating is a TiN phase, and also has partial TiO, TiO2, and Ti3O oxide phases; the coating has layered distribution of bright and dark phases, and the joint between the interior of the layered structure and the layer structure is provided with a small number of pores; the joint between the coating and a base has no microscopic defects such as cracks and is well jointed. The supersonic plasma-sprayed TiN coating achieves hardness as high as 1210HV0.1, thereby enhancing the wear resistance of the coating. The coating has good fracture toughness, thereby enhancing the fracture mechanical performance inside of the coating and extending the fatigue life of the coating. Also provided are a preparation method for the TiN coating, and a mold coated with said TiN coating.