Good Morning All,
Kinda urgent issue. I had an N/S S-R test fail at 40+ hours in the notch for Inco 718 (AMS 5662/5663). Naturally we sent more material for the 3 redundant tests all of which broke in the notch in under 2 hours. I checked the solution H/T chart on our end and everything ran OK...
Came across a 52100 mill cert with the ams 6440 spec with the exception of continuous stencil. can someone please shed some light on what a continuous stencil is? is it some sort of heat# marking process?
We have not run a solution and precipitation cycle on 718 in some time and our program carried out an extra hour at the higher end of the precipitation cycle.
the AMS 6443 states that it gets 8 hours at 1325-1400, then cooled down to 1150-1200 (~1.5hrs) then held there for 8 hours. our cycle...
Upon looking into quoting a Rene 41 forging, I noticed on the car-tech datasheet it gives a range for optical finishing temperature. what exactly does that mean?
http://cartech.ides.com/datasheet.aspx?i=103&e=134&c=TechArt
It appears in the Hotworking section of the datasheet, I am assuming...
I am looking into getting a portable Rockwell tester (some of our forgings are too large to put on a tabletop and would be more convenient as far as batch sizes go) any suggestions as far as brand or style? Also, any insights to the ASTM E110 spec would be helpful.
Thanks Y'all,
JC
We are using IR thermometers rated to 1650°C(3002°F) to measure billet temperature leaving a furnace to a forging press. The issue I am having is getting an accurate reading on materials that develop scale quickly upon leaving the furnace, mostly grades of steel(4340, 52100, M50..etc), other...
we found slag in the basemetal(M50) of one of our forgings destructively, and we have already decided to test the bar stock for slag voids. we have another forging that we had made, and I was wondering if it was worth x-raying (looking for similar voids) as opposed to just sectioning it up...
