I ask the foundry to cast nickel alloys and I took a piece metal to do a chemical test.
The element composition of the nickel alloy is Ni 70% Cr 12% Fe 1.2% Mo 2.5%....so far they all are in the allowable range.
But I found the alloy also contains W 0.004% !
Is this the normal condition ? ?
We are doing a gear box for a two wheeler (for the first time). Most of our benchmarks are of Suzuki and Honda bikes. All their gears are made of SCM420. Surprising part is these gear teeth are formed by cold forging. No machining at all!
Now, I was comparing the chemical composition of...
Dear PF Forum,
I think I have asked too many question for one day.
I'm trying to understand antioxidant and free radicals. But, first I'd like to understand oxidation number.
The oxidation number for hydrogen is +1 or -1. I can understand that. Either Hydrogen must lost one electron or gains one...