Riza

Dear sirs, I am working on a project that focus on hydrogen blistering of low carbon steel of CK15. Our goal is finding processes that cause hydrogen blistering on the surface of CK15 steel sheets. The coupons are exposed to H2S and CO2 gasses in a controlled conditions to create hydrogen blisters on the surface of CK15 steel sheets. I wonder if anyone can suggest any process that causes and helps the creation of hydrogen blistering on the surface CK15 steel sheets. Thanks a lot.

CK15 is a low carbon steel with dimensions of 10*75*2 mm. I want to reduce its thickness from 2 mm to 0.1 mm. I am searching for cold working processes. It is important to note that there is not any rolling machine around my area.

Dear Sirs, I want to reduce the thickness of CK15 blades. I wonder if anyone suggest simple ways of cold thickness reduction. Thank you in advance. R Farshbaf

Dear Sirs, Greetings. I have a problem in thickness reduction of CK15 blades with dimensions of 10*70*2 mm. I want to create tensile residual stress in the surface of them; thus I have to reduce the 2mm thickness to 0.2 mm in one pass. But, due to leakage of equipment and budget, I cannot approach rolling machine, etc. Is there any simple and money-free way like hand hammer that I can reduce the 2mm thickness to 0.2 mm in one pass and create tensile residual stress in the surface of work piece. Kind regards, R. Farshbaf