02-14-2018, 02:30 PM
I'm still thinking about it Mark and you already know what a drain thinking is on me. Just so you all know, Mark and I ran some tests yesterday where Mark tested three different hardness levels of steel and each at two different load levels, 100KG and 150KG with his hardness tester.
Generally, I think the results indicated what we already suspected and that is that the Rockwell C is more nonlinear at higher levels of hardness than lower levels. At the lowest level the numbers didn't seem to quite follow and that is what still perplexes me. I think that it is a valid experiment but should be conducted with a series of incremental test blocks of known hardness. The differential readings between 100 and 150KG loads and between test blocks might give us a good idea of what the nonlinearity looks like. I've got another post that I'm going to try and find time to put up later today that casts some new light on the Rockwell linearity question so all our experimentations may become moot.
Generally, I think the results indicated what we already suspected and that is that the Rockwell C is more nonlinear at higher levels of hardness than lower levels. At the lowest level the numbers didn't seem to quite follow and that is what still perplexes me. I think that it is a valid experiment but should be conducted with a series of incremental test blocks of known hardness. The differential readings between 100 and 150KG loads and between test blocks might give us a good idea of what the nonlinearity looks like. I've got another post that I'm going to try and find time to put up later today that casts some new light on the Rockwell linearity question so all our experimentations may become moot.