Investigation on mechanical properties of high speed steel roll material by nanoindentation

Authors

Hongtao Zhu, University of WollongongFollow
Qiang Zhu, University of WollongongFollow
Prabuono Buyung Kosasih, University of WollongongFollow
A Kiet Tieu, University of WollongongFollow

RIS ID

88256

Publication Details

Zhu, H., Zhu, Q., Kosasih, B. & Tieu, A. K. (2013). Investigation on mechanical properties of high speed steel roll material by nanoindentation. Materials Research Innovations, 17 (Suppl 2), S35-S39.

Abstract

The hardness and elastic module of carbides and matrix of a high speed steel (HSS) roll material have been characterised by nanoindentation in the force range of 5 -10 mN. It has been found that a different correlation needs to be applied to convert nanohardness to micro-Vickers hardness for the carbides and matrix. The pile-up phenomenon occurs significantly at the edge of the indent on the HSS matrix after nanoindentation, which resulted in a slight overestimation of the hardness. The nanohardness of the MC carbides, M2C/M7C3 carbides and HSS matrix is ~20.0, 12.6 and 9.2 GPa which are in good agreement with the reported values by micro-Vickers test.