Thanks for your reply, those sources may be enough if I can find them. As for an application, I am designing a layer of a pole vault. It may be woven CFRP in an epoxy resin. I am also researching wrought magnesium alloys and its processing.
Hello all,
I have been searching for information about processing CFRP and am having trouble finding things over the internet. Just about anything will help. Does anyone have any good information sources on the topic?? That should be all I need, thanks a ton.
Yes, only for brittle materials (so mostly ceramics). It's obvious you need to have crack propagation to even do the calculation. It could be moved, and might be very useful to someone. I have heard the KIC SHETTY is the most commonly used also.
Ah, yes you guys are right there is no exact conversion or relation, though maybe I ment there was a way to obtain a fracture toughness reading when doing a hardness test. I just found the calculations and attached them in pdf. It is based on using a macro vickers indent and measuring the...
Does anyone have the equation to convert hardness (vickers) to fracture toughness? I would think it's only for certain materials but, could be a useful equation for me to have. I will continue to look for it and will post it if I find it. Thanks
I see, knowing that 1lb of ti could burn in 3 min is helpful, thanks for the help. But now I wonder why it did not burn through the drum. Even if it was steel.
I did not find a tin drum and wouldnt know who did. In my previous post, I listed all the information I was given. So again I did not perform the experiment.
And yes, I believe the particle size would definetly affect the rate, as would the air velocity, density, how intensly the torch was...
Thanks for responces,
I'm actually calculating after the experiment took place, so I didnt perform the experiment and do not have any of the powder. The only information I have is, "1lb. of commercially pure ti powder was mound up (cone shape) onto a Sn lid (from a drum) outside in a field and...
Yes, it does, though it actually is part of a work-related experiment. Though, it is just an experiment not very important. Should be an easy calculation. I am having trouble just finding values, i think I found the combustion rate of ti being ~0.1g/cm^2.s, I can not seem to find things over...
I see, makes sense. And we are detecting the percentage of ferrite near the rolled surface and mid thickness but not doing the ASTM A923. I guess while doing the % ferrite we could see if there was sigma present and then would know if the heat treatment was wrong? I think sigma occurs when...
Ah, I understand! And it is super duplex S32760. And we will be grinding the edges. So grinding will most likely prevent pitting on these surfaces? I now understand even if it doesn’t we would still examine it to determine a failure.
And I know burns from cutting would affect the test but...
Hello all,
I am performing corrosion Wt. loss test (ASTM G48) on 4 samples. I will be immersing the entire 6-sided rectangular sample into the solution, however am wondering how I could obtain the corrosion Wt. loss of just the rolled surfaces (2 sides). The other 4 surfaces have been ground...
