Microstructure, phase transformation and hardness of nanometric Cr-Al multilayer coatings

Yean Liang Su, Yue Feng Lin

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Nanometric Cr-Al multilayer films are deposited by magnetron sputtering to investigate the influences of composition and annealing on the microstructure, phase transformation, and hardness. The enhancement of hardness of as-deposited coatings is attributed to solid solution strengthening and grain size strengthening. For the Crlcoatings with x= 30at.% and x=62 at.%, respectively, the annealing process prompts the formation of Crl and Crlintermetallic compounds. The enhancement of hardness of annealed coatings is primarily caused by the intermetallic formation and secondarily by oxide layer formation.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalAdvances in Mechanical Engineering
Volume7
Issue number6
DOIs
Publication statusPublished - 2015 Jun 8

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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