Well I am doing another anlysis on why some Type 304 stainless steel tubes failed by fretting in one of our exchangers. One of the things I noticed with the tubes located on the outrside perimeter of the tube bundle is that they tend to fail mainly by fretting. I know fretting in exhcnager...
So I am trying to figure out why 2 tubes failed (via leaking) on a new tube bundle that was recently installed in the exchanger. Right now I suspect 3 possible root causes: 1) Pressure surge: Shortly before the leaks were discovered in a hydrotest, a PSV valve popped. 2)Velocity: These are...
I'm researching both Copper Nickel 90/10 and 70/30 as possible tube materials for heat exchangers as an alternative to Admiralty brass which the company has been usuing and is looking to replace. Basically I want to know if anyone has had experience with these materials and if they are ideal for...
Here's some photos taken of a sample cut from a pipe which supplies cold process water to an ore preparation plant. The failure was detected when they observed a leak in the pipeline. Upon observing the photos you can see that there is obvious corrosion which probably led to the hole.
I am...
I am truly frustrated with my job hunt. I have both a Bachelor's and Master's degree in Materials Engineering and have been laid off since February. I only have about 3 years experience but I never imagined I would still be unemployed for so long. I thought 2 months max and I would find a job in...
