公开(公告)号：US20160303774A1

公开(公告)日：2016-10-20

申请号：US15102976

申请日：2015-10-13

申请人： Haidou WANG ,  Zhiguo XING ,  Huawei CUI ,  Guo JIN

发明人： Haidou WANG ,  Zhiguo XING ,  Huawei CUI ,  Guo JIN

IPC分类号： B29C41/20 ,  C04B35/622 ,  C04B35/58

CPC分类号： C04B35/62222 ,  B29C33/56 ,  C04B35/58014 ,  C04B35/626 ,  C04B35/63416 ,  C04B35/653 ,  C04B2235/3232 ,  C04B2235/3886 ,  C04B2235/5436 ,  C04B2235/79 ,  C04B2235/80 ,  C04B2235/96 ,  C23C4/02 ,  C23C4/10 ,  C23C4/134

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.

摘要翻译： 公开了一种凝聚的TiN粉末，该粉末包含粒径为40至80μm的球形聚集体，并且通过分别具有72％和28％的原子分数的Ti和N的聚集形成。 还提供了使用该粉末获得的TiN涂层。 涂层的三强相是TiN相，并且还具有部分TiO，TiO 2和Ti 3 O氧化物相; 涂层具有明暗相的分布分布，并且层状结构的内部与层结构之间的接合部设置有少量的孔; 涂层和基体之间的接合处没有诸如裂纹的微观缺陷，并且接合良好。 超音速等离子喷涂TiN涂层达到高达1210HV0.1的硬度，从而提高涂层的耐磨性。 涂层具有良好的断裂韧性，从而提高涂层内部的断裂力学性能，延长涂层的疲劳寿命。 还提供了用于TiN涂层的制备方法，以及涂覆有所述TiN涂层的模具。