硼含量对Ti-B-N纳米复合涂层显微结构与性能的影响  

Effect of Boron Content on the Microstructure and Properties of a Nanocrystalline Composite Ti-B-N Coating

作　　者：杨巧勤[1] 赵立华[1] 赵南方[2] 李德意[1] 肖汉宁[1] 

机构地区：[1]湖南大学,长沙410082 [2]中南工业大学粉末冶金研究所,长沙410083

出　　处：《稀有金属材料与工程》1998年第5期278-281,共4页Rare Metal Materials and Engineering

基　　金：湖南省自然科学基金

摘　　要：将硼加入Ti－N涂层，使用活化离子镀制备出了硼含量为（5～16）at％的Ti－B－N涂层，并着重研究了硼含量对Ti－B－N涂层结构与性能的影响。EPMA与AES分析表明，Ti－B－N涂层元素Ti、B、N在涂层内分布均匀，但在膜／基界面处有一界面扩散区。TEM显微分析表明，Ti－B－N涂层为致密微细的纳米晶多相复合结构，晶粒度不超过50nm。XRD与XPS综合分析表明，Ti－B－N涂层主要由面心立方TIN、简单正交TiB、立方BN与简单六方Ti－B－N相组成，且随着硼含量的增加，含硼相含量增加。Ti－B－N涂层的硬度、韧性与附着强度等力学性能比相应的Ti－N涂层要好得多，且其沉积温度更低。By adding of boron to the Ti-N coating, Ti-B-N coatings with boron contents from 5% to 16 % have been deposited on steels using activated ion plating. The effect of boron content on the microstructure and the properties of the Ti-B-N coating have been studied. A diffusion zone exists at the coating/substrate interface. TEM analysis indicates that the coating has a dense nanocrystalline composite structure and a crystal size smaller than 50 urn. The phase composition of the coating is fee TiN, simple orthorhombic TiB, cubic BN and simple hexagonal Ti-B-N. The mechanical properties, such as microhardness, toughness adhesion and sliding friction coefficient of the Ti-B-N coating are much better than those of the Ti-N coating, and the deposition temperature is much lOwer than that for the Ti-N coating.Correspondent: Yang Qiaoqin, Ph. D, Associate Professor, Material Test & Research Centre, Hunan University, Changsha 410083,P. R. China, Tel: [phone]

关 键 词：Ti-B-N涂层 硼含量 纳米晶 

分 类 号：TG139[一般工业技术—材料科学与工程] TG174.4[金属学及工艺—合金]