Search results for query: *

It does not matter what the base metal is. Could be Nickel, Cobalt, 316 SS or Aluminum, or any other non-rusting material. If you put free, metallic Fe (which can come from many sources, such as machining fluids, blasting shot or grit that have previously been in contact with carbon steel, low...

Caution with this last one. If in fact your castings are contaminated with free Iron, then the only thing blasting with stainless shot will do, is contaminate the stainless shot with the free Iron. Then, not only will the casting rust, the shot will rust, and anything subsequently blasted with...

May I complement TVP on his knowledge of the alloy. This person knows about metals. Question - has bernt reviewed his concerns with the foundry? Absolutely no question that the fatique performance is improved/managed/controlled by porosity, grain size & modification. Call in other possible...

Thanks guys/gals/whatevers. Found what I was looking for. You were all a big help. End this thread.

Does anyone have, or know where I can get a good digital copy of the Iron-Carbon diagram?

Don't know about on-line, but thumbing thru the Metals Handbook, Vol I, most of the charts start at 370/400 dC. Don't think there is hardly any change up to 175dC.

All of the above are correct. Free Fe is necessary for rust on a 304 casting. Blasting, machining fluids, poor pickling, etc can cause this. A quick test to determine whether or not free Fe is present is the Copper Sulfate test. If free Fe is present, the Copper quickly plates onto the...

sdjvar: may I inquire as to reason for research in investment casting? results? were you going to do the casting? majordud