Weldstan - I don't have experience in failure analyses....I trust your experience on this. As Mrfailure noticed very well, there is a bigger difference in hadness in the upper limit when converted to HV, so is more critical.
Tbulena - the part was measured at 0 - 90 - 120 degrees (on 3 gears...
Sorry for not answering anymore...had very busy days.
tbulena - Microhardness was measured on a finished/grounded part, not on a coupon ar sample.
Maui - Effective case depth definition is 50HRC, measured by Vickers 500 grams (513 HV0.5) and the requirement was 63HRC max. at 0.003". Measured...
The microstructure looks good, there are some carbides but not networks. I know we have to respect customer requirements, this is an exception because I have informations that the process went well and there were no problems. Still I don't know why the hardness is so high, that's why I wanna...
Hello,
I have some carburized parts (AMS 6265 material) that exceed the hardness limit (gear area). Te requirement is max.63 HRC and the parts have around 64 HRC at .003 inch measured with HV0.5.My question is: Is it a small difference like 1-2 points HRC so detrimental to the parts? I am...
