在工具钢表面采用电弧蒸发物理气相沉积TiN涂层中,将不锈钢编织网置于基底和蒸发源之间,以得到不连续的TiN涂层.检验了无涂层、连续涂层和不连续涂层3种表面状态的性能,其中在室温和200℃下做了无润滑和润滑条件下的盘-块和球-盘滑动摩擦试验.结果表明,在滑动条件下,不连续的TiN涂层可同时减小工具钢的磨损量和磨损速度.3种表面状态下的高速切削中,与无涂层和连续涂层比较,不连续TiN涂层由于寿命增加具有优势.
TiN coating was deposited by arc evaporation PVD (physical vapor deposition) onto tool steel.A netted screen made of the stainless steel was placed between substmte and vaporizer in order to get discontinuous TiN coatings.Three kinds of surface condition (uncoated,continuous and discontinuous TiN coatings) were prepared and examined for their performance.Tribological behavior was investigated by means of dry and lubricated sliding tests at room temperature and 200℃,on a disk-on-block and sphere-on-flat tribometer.The results show that the discontinuous TiN coating significantly decreases both the wear and the wearing speed of tool steel under sliding tests,and reduces friction under conditions of bidirectional sliding.In the three kinds of surface condition,the discontinuously coating has superiority for high speed cutting owing to its lifetime increasing compared with uncoated and continuously coated.
参考文献
| [1] | Hanson M;Stavlid N;Coronel E et al.[J].WEAR,2008,264:781. |
| [2] | Devillez A;Schneider F;Dominiak S et al.[J].WEAR,2007,262:931. |
| [3] | Rossi S;Fedrizzi L;Leoni M et al.[J].THIN SOLID FILMS,1999,350:161. |
| [4] | Bromark M;Larson M;Hedenqvist P et al.[J].Surface and Coatings Technology,1997,90:217. |
| [5] | Nordin M;Sundstrom R;Selinder T I et al.[J].Surface and Coatings Technology,2000,133-134:240. |
| [6] | Chu K;Shen Y G et al.[J].WEAR,2008,265:516. |
| [7] | Antonyuk V S;Soroka E B;Lyashenko B A et al.[J].Strength of Materials,2007,39:99. |
| [8] | Hua M;Tam H Y;Ma H Y et al.[J].WEAR,2006,260:1153. |
| [9] | Lyashenko B A;Rutkovskii A V;Soroka E B et al.[J].Strength of Materials,2001,33:344. |
| [10] | Fox-Rabinovich G S .[J].WEAR,1993,160:67. |
| [11] | Sun Y;Bloyce A;Bell T .[J].THIN SOLID FILMS,1995,271:122. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%