An Investigation of a Scratch Method for Testing the Hardness of Anodic Coatings on Aluminum Alloys.

摘要

A preliminary study has been made of the relationship between weight losses in a standard abraser test and scratch-hardness tests made on a series of anodic coatings produced on aluminum alloy panels. Tests show that for certain conditions of scratch stylus and test load, a general relationship exists wherein coatings that result in higher weight losses in the abraser tests also yield scratches of greater width in the scratch-hardness test.