I am trying to plot minimum and maximum lines on a polynomial scatter band within excel. I am able to plot the mean line ok but there doesn’t appear to be an option to actually plot a given 1.65 standard deviation above and below the line. There is an error bar and standard deviation function...
Hi, I am conducting a project in dimensional control of investment casting. I wonder if anyone can help me with the following:
What is the best method of getting aluminium into solution in a Cr/Ni/Fe alloy using an electric induction furnace? I am gaining good yield just by adding pure Al to...
Cheers guys, I understand that we actually welded the root autogenously so I think we will grind off the cap and create a small v, then reweld with correct wire to dilute the effects of the W. This way we will not have to perform a complete cutout.
Hi, mistakenly welded 25/35 Cr/Ni tube using a 25/35 high 5% tungsten wire. Normally the wire would be 0.19% W. Anyone know the effect?? will the weld joint be too brittle??
appreiciate any comments
I am trying to find an acid mix that will adequately reveal the microstructure of a 35/45 chrome/nickel alloy. The current etchant I use is HN03 HCL H20 mix, which is OK for 25/35 alloys.
Where can I find info on etching high nickel-based alloys?
I have a corrosion problem concerning 25/10 chromium/nickel alloy furnace tubing in a high sulphur reducing environment at temperatures in excess of 700C. I am looking for information on the kinetics and how to reduce the affects of sulphidation on these alloys. Since the atmoshpere is reducing...
Any recommendations on reducing electrolytic hafnium pieces to around 0.5mm for an alloying application.
Ball Mill? Jaw Crusher?
Also I believe Hf is phosphoric and can ignite spontaneously in air when in powder form? Is there a safe way to do this?
Comments Please
Can anybody tell me if using a ball mill would be adequate and safe in the size reduction of electrolytic formed Hafnium pieces.
Any info would be gratefully accepted.
Thanks
