SEDL / STP / STP889-EB / STP32963S

Indentation Hardness of Surface-Coated Materials

Vingsbo, O
Staff, Uppsala University, Uppsala,

Hogmark, S
Staff, Uppsala University, Uppsala,

Jönsson, B
Staff member, Kanthal Electroheat AB, Hallstahammar,

Ingemarsson, A
Staff, Uppsala University, Uppsala,

Pages: 15    Published: Jan 1985

Download this paper for $25 PDF (216K)          View License Agreement
Abstract

A model for the mechanical interaction between a deposited surface film and its substrate during indentation is investigated for a number of material combinations. Linear relationships between the indentation microhardness and the inverse of the indentation diagonal are found for indentations larger than a limiting size, for both coated and uncoated materials. These relationships are used for measuring the hardening effect of a harder coating on a softer substrate and for finding separate hardness values characteristic of the film and the substrate materials.