Help me read the steel after heat & quench

F

feister

Joined
Apr 23, 2013
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5
I have been working with mostly 1084 with .156 thickness. This blade is 1/4 inch 1075. I feel confident in my heat treat and quench in canola oil. My question to those of you with more experience is the color change and very distinct line along my beveled edge. What is it exactly? Is it good? Bad? Like I said, I have made a lot of knives in 1084 but they were thin steel compared to this and I have not seen this defined line along the edge like this before. Thank in advance for your answers.
e8fBg6S.jpg
 
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Need a picture, a line can be anything. That’s like saying when driving, your car is making a noise. “What is that noise?”
 
1075 is not a deep hardening steel, that is probably a hardened edge. Like a hamon. I’m not able to see your image though.

Hoss
 
The method of posting a photo is in the stickys. You can also email one of us the image so we can post it.
 
feister said:
e8fBg6S.jpg
I'm really hoping this works this time. DevinT my blade does look like a hamon but that was not the intention
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I get that when I edge quench my blades. The scale at the edge pops off in the quench and can leave a quench line. Looks normal to me. It's a nice looking blade you got there. Sooner or later some real experts will chime in on this though. I'm just a hobbyist after all.
 
JTknives said:
Need a picture, a line can be anything. That’s like saying when driving, your car is making a noise. “What is that noise?”
Click to expand...
When someone says my car is making a noise you ask for a picture?:p
 
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That just looks like some scale and decarb. Sand/grind it clean after tempering and it should go away.
 
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