How come you never tried to hammer that Safari Skinner through a car hinge?
That was actually Thom's bright idea to suggest that to my brother on Busse's forum so it was done with a Howling Rat (which also had the same edge angle from Busse as Dozier' uses). The Rat eventually broke because of poor technique while it was being struck with a 28 on framing hammer. I had also made the edge much more acute than than stock configuration. It was at about 10 degrees per side and I had thinned the primary grind. Even then though it would have cut the door off with no problems had he cut through the bottom hinge first, the Dozier Agent broke immediately, but of course D2 is far more brittle than 52100. If you want to cut a door of a car with the Safari Skinner then go ahead, I offered to send it to you earlier this year. It would be expected to be lower than the Howling Rat but much higher than the Agent. It also had no trouble matching the edge retention of the Agent slicing abrasive material.
M2 is one of those up there with O1 for rusting ...
The corrosion resistance is significantly higher than O1, but lower than D2 which has more chromium dissolved, how much depends on how it is austenized, but 6-8% tends to be normal. Johnston noted that 1095 had a problem for meat cutters as the edge retention was lower than expected compared to stainless which was attributed to corrosion, M2 did not have such issues and far outperformed ATS34.
I know 1095 takes a great edge, but darned if I know if D2 does.
At the angles they use you will not see a difference in initial sharpness.
All I want is just want a good sharp knife that is reasonably easy to sharpen.
1095 would be much better for you.
Actually, all my Doziers have pretty obtuse edges.
It would probably be good to note the reference here because obtuse means different things, Dozier is much more acute than TOP's but more obtuse than the thinner Spyderco models like the Calypso Jr. for example.
The reason I say this, is because a year or so ago, I was experimenting with a bunch of D2 knives, and found they chipped and indented very easily once the edge bevel was thinned out too much.
Take a piece of wire which is similar in thickness to the carbides in D2 and imagine testing its strength, what do you think happens? The strength will just be the carbide/matrix bond which is very low compared to the internal matrix cohesion. This is why high carbide steels do so poorly when the edge is loaded. Landes measured this directly, it isn't a theory that D2 has poor edge strength at low angles.
M2 does much better than D2 because the carbide volume is much lower and the carbides are MUCH smaller it is also 5-6 points hard. They are not in the same class edge stability wise. D2 is a low class three, pretty much the worst cutlery steel, and M2 is a high class II or low class I.
[D2]
Put a rough edge on it (meaning rough in terms of grit size, not quality), and you have a D2 knife that keeps an edge for a very long time cutting through rough hide and dirty rope.
Yes, now use D7 or A11 if you really want to see long term slicing aggression. Compare a 0.005"/10 degree Wilson in 10V at 64/65 HRC to a Dozier in D2 at 60/61 HRC at 0.015"/15 degrees. Actually if you want to see something interesting, compare a 0.005"/10 degree 420J2 blade slicing hemp rope versus that Dozier. Use Goddards scale testing method and see which one performs better. Or just go back on rec.knives and read what Mike Swaim did ten years ago.
I'm testing D2 against CPM D2 right now, and they're both tougher than me!
Yes, that is their strength, slicing with a coarse finish, now sharpen them to a really high polish, reduce the edge angle under 10 degrees and see how long they hold a high sharpness push cutting.
I'd like to use one of Alvin's knives. It would help if one knew how to reach this person to set that up though.
Go on rec.knives and ask him. This is one of his first knives :
The edge angle is 5 degrees, still think a 15+ Dozier is not obtuse? It is 200%+ greater in edge angle, in comparison the heaviest ground Busse I have seen is only 15% greater in angle than the most acute Dozier. Now if you want to start calling Busse edges obtuse compared to Dozier then obtuse is not even strong enough to compare Dozier to Johnston.
But Alvin makes his knife to cut which is why they are so thin and acute, they are not meant to pry or chop, and no impact splitting. Ok those ones anyway, he is currently making some blades in L6 which are intended for that kind of utility work where a much tougher and stronger steel is needed. But that does not mean the 1095/O1/M2 blades are just paper cutters, you can cut wire, metal flashing, sods, read the reviews to note what they can do and what it takes to break them, I took a small piece out of the primary grind on the 63 HRC O1 blade rocking it through a hard spruce limb.
-Cliff