52100 vs W2

Nah, I made this chopper in July 2015 and posted on this thread - http://www.bladeforums.com/forums/s...f-high-strength-high-toughness-hardened-steel

I suspended ht formula used in 2104 & early 2015 due to issues I can't resolve w/o more sophisticated equipment. The current ht produces grain (viewed under light micrograph) size between 1-2um. Whereas prev ht produce finer grain but has issue with impact toughness.

Any updates?

Is this that blade?

[video=youtube;X0jh0zPz7ao]https://www.youtube.com/watch?v=X0jh0zPz7ao&feature=youtu.be[/video]
 
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