Surface hardness improvement of Al via inserting ceramic powders by ultrasonic mechanical coating and armoring with subsequent annealing

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

4 Scopus Citations
View graph of relations

Author(s)

  • W.S. Chuang
  • Y.C. Cai
  • W.Y. Tsai
  • K.K. Wang
  • C.F. Chen
  • X.H. Du

Detail(s)

Original languageEnglish
Pages (from-to)145-150
Journal / PublicationSurface and Coatings Technology
Volume340
Online published20 Feb 2018
Publication statusPublished - 25 Apr 2018

Abstract

In this study, ultrasonic mechanical coating and armoring (UMCA) with subsequent annealing is applied to improve surface hardness of Al. The micro-scaled CuO powders are bombarded and inserted into Al by UMCA, leading to the increment in surface hardness by 6 times. The grain refinement, work hardening and dispersion hardening are contributed to surface hardening. Moreover, the reaction temperature between CuO and Al can be reduced by severe UMCA process. Thus, after UMCA and subsequent annealing at 500 °C, the surface hardness can be increased by 10 times, which can mainly refer to the dispersion strengthening caused by transformed nano-size Cu2O.

Research Area(s)

  • Al alloy, Dispersion strengthening, Hardness, Ultrasonic mechanical coating and armoring

Citation Format(s)

Surface hardness improvement of Al via inserting ceramic powders by ultrasonic mechanical coating and armoring with subsequent annealing. / Chuang, W.S.; Cai, Y.C.; Huang, J.C.; Tsai, W.Y.; Wang, K.K.; Chen, C.F.; Du, X.H.

In: Surface and Coatings Technology, Vol. 340, 25.04.2018, p. 145-150.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review