Nano- and Micro-Scale Impact Testing of Hard Coatings: A Review

Coatings

Ben D. Beake¹ 

[1] Micro Materials Ltd., Willow House, Yale Business Village, Ellice Way, Wrexham LL13 7YL, UK;

关键词: nano-impact;    micro-impact;    fatigue;    fracture;   

DOI  :  10.3390/coatings12060793

来源: DOAJ

【 摘 要 】

In this review, the operating principles of the nano-impact test technique are described, compared and contrasted to micro- and macro-scale impact tests. Impact fatigue mechanisms are discussed, and the impact behaviour of three different industrially relevant coating systems has been investigated in detail. The coating systems are (i) ultra-thin hard carbon films on silicon, (ii) DLC on hardened tool steel and (iii) nitrides on WC-Co. The influence of the mechanical properties of the substrate and the load-carrying capacity (H³/E²) of the coating, the use of the test to simulate erosion, studies modelling the nano- and micro-impact test and performing nano- and micro-impact tests at elevated temperature are also discussed.

【 授权许可】

Unknown