Residual stresses in PVD hard coatings

被引：186

作者：

Oettel, H. ^{[1
]}

Wiedemann, R. ^{[1
]}

机构：

[1] Freiberg Univ of Mining and, Technology, Freiberg, Germany

来源：

Surface and Coatings Technology | 1995年 / 76-77卷 / 1 -3 pt 1期

关键词：

Critical load - Defect recovery - Grown in defects - Hard coatings - Physical vapor deposition - Scratch test;

D O I：

10.1016/0257-8972(95)02581-2

中图分类号：

学科分类号：

摘要：

High macroscopic residual stresses in PVD hard coatings up to about - 10 GPa are caused by both the thermoelastic effects and grown-in defects, generated by fast particles during deposition. Defect recovery, relaxation by plastic deformation or cracking limit the residual stresses. The mechanical behaviour of coated materials can be explained by the combination of the residual stresses and the exterior stresses (bending, hardness, critical load, erosion, abrasive wear). Owing to the lack of generalized knowledge about these relations a prediction of the performance of tools or components has to be sketchy.

引用

页码：265 / 273