Sorry for the delay, I had to check few things.
Not sure what you mean by "full strength" weld. Final application may be a butt joint with full penetration in one pass (thickness ranging from .040" to .080", or a Fillet weld, also single pass.
Heat input: for the Fillet weld test, current is...
metengr, thank you for confirming this approach. Actually, most of these evaluations are underway or completed, and we have not confirmed yet a cracking mechanism. This is why I started this thread by asking if anybody else experienced cracking with this alloy; our experience does not fit with...
Indications are visual (10X). Actually, some of these indications do not respond well to fluorescent penetrant inspection. Surface contamination was our first hypothesis; surfaces were buffed and cleaned with alcohol. Microcracks parallell to main indication can be seen in close proximity...
Most tests were done on solution annealed condition. Similar results were obtained with overaged at H1150.
The test assembly is made of a T joint, both members .125" thick, filler material is 17-4PH. Cracks are confirmed of intergranular type and shallow.
