Hello everyone,
I have a problem on my casting surface, which I never experienced before.
Cast material specification is GX25CrNiSi20.14.
In the as cast condition; after machining, a surface appeared like in the picture below.
The order is cast in 4 melt charges.
All charges have the...
Hi, I am working on increasing the lifetime of abrasion resistant parts manufactured with Hadfield steel ( austenitic manganese steel ). I've read some articles about nitrogen gas purging into the melt while alloying with Ti or Nb which produces hard carbides and nitrides inside the austenitic...
I am having a problem with mechanical properties of GX8CrMoAlSi18.3 alloy which contains 0.09% C, 1.00% Si, 0.80% Mn, 18% Cr, 3% Mo, 1% Al. I need to get tensile strength Values above 500 N/mm2, but i only got 320 max. Any comments about the heat treatment will be pleased. Thank you...
I am having gas porosity problems with CA-15 type stainless steel castings and can't find a way to prevent. I have this problem both in resin bonded and clay bonded sand moulds. During solidification i observe expansion on the feeders and after breaking the feeders porosities appear on the...
