Gradient Structured Copper by Rotationally Accelerated Shot Peening

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

106 Scopus Citations
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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)758-761
Journal / PublicationJournal of Materials Science and Technology
Volume33
Issue number7
Online published17 Nov 2016
Publication statusPublished - Jul 2017
Externally publishedYes

Abstract

A new technology—rotationally accelerated shot peening (RASP), was developed to prepare gradient structured materials. By using centrifugal acceleration principle and large steel balls, the RASP technology can produce much higher impact energy compared to conventional shot peening. As a proof-of-concept demonstration, the RASP was utilized to refine the surface layer in pure copper (Cu) with an average grain size of ~85 nm. The grain size increases largely from surface downwards the bulk, forming an 800 μm thick gradient-structured surface layer and consequently a micro-hardness gradient. The difference between the RASP technology and other established techniques in preparing gradient structured materials is discussed. The RASP technology exhibits a promoting future for large-scale manufacturing of gradient materials.

Research Area(s)

  • Copper, Gradient structure, Hardness, Microstructure, Rotationally accelerated shot peening

Citation Format(s)

Gradient Structured Copper by Rotationally Accelerated Shot Peening. / Wang, X.; Li, Y.S.; Zhang, Q. et al.
In: Journal of Materials Science and Technology, Vol. 33, No. 7, 07.2017, p. 758-761.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review