磁控溅射TiAlTaN/TaO/WS复合涂层及其钛合金的切削性能  

Preparation of TiAlTaN/TaO/WS Composite Coatings by Magnetron Sputtering and their Cutting Properties on Titanium Alloy

作　　者：杜菲菲 李超 李显亮 周尧尧 阎庚旭 李国建[2] 王强[2] DU Feifei;LI Chao;LI Xianliang;ZHOU Yaoyao;YAN Gengxu;LI Guojian;WANG Qiang(Shenyang Heshitai General Titanium Industry Co.Ltd.,Shenyang 110206,China;Key Laboratory of Electromagnetic Processing of Materials(Ministry of Education),Northeastern University,Shenyang 110819,China;School of Metallurgy,Northeastern University,Shenyang 110819,China;State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110819,China)

机构地区：[1]沈阳和世泰通用钛业有限公司,沈阳110206 [2]东北大学材料电磁过程研究教育部重点实验室,沈阳110819 [3]东北大学冶金学院,沈阳110819 [4]东北大学轧制技术及连轧自动化国家重点实验室,沈阳110819

出　　处：《材料研究学报》2023年第4期301-307,共7页Chinese Journal of Materials Research

基　　金：国防基础科研计划(JCKY2020110C004)。

摘　　要：用磁控溅射方法制备了低粘结TaO与低摩擦系数WS复合的TiAlTaN/TaO/WS复合涂层。该涂层由Ti过渡层、TiAlTaN耐磨层、TaO低粘结层和低摩擦系数WS层组成。涂层复合使表面形貌从多边形变为球形,但是不影响原涂层的相组成和柱状晶组织。复合涂层使原涂层的硬度和弹性模量降低,但是使摩擦系数从0.648降低到0.102。低摩擦系数复合涂层的润滑性能使切削钛合金的效率提高了84%,比商用涂层提高33%。In order to solve the problem of coating failure caused by cutting heat due to hard coatings with a high coefficient of friction(COF)when cutting titanium alloy,TiAl-TaN/TaO/WS composite coatings were prepared on cutters by magnetron sputtering.The coatings were composed of Ti buffer layer,TiAl-TaN layer with high wear resistance,TaO with low adhesive property and WS with low COF.The surface morphology of coatings changes from polyhedral granula(of TiAlTaN coating)to spherical granula(of composite coating),but the phase composition and columnar crystal structure of coatings are not affected.The composites can not only reduce the hardness and elastic modulus of the coatings,but also decrease the COF of the coatings from 0.648 of the TiAlN coatings to 0.102 of the composite coatings.Due to the low COF,the composite coatings show beneficial lubrication effect,the life of the cutters with composite coatings is 84%higher than that without coating and 33%higher than that with ordinary commercial coating respectively for cutting titanium alloy.Therefore,it provides a new tool coating that can be used for cutting titanium alloy.

关 键 词：金属材料 刀具涂层 功能复合 钛合金切削 

分 类 号：TG174.444[金属学及工艺—金属表面处理]