B
Bush Monkey
Guest
1095 Oil, Water, blade geometry and stress risers
I have been quenching 3/16 1095 in Canola and have been unable to break 60Rc on the flats. I know the newer quenchants are miraculous but I like to keep things simple. I have not tried thin mineral oil but I suspect that it is faster than canola but still slower than what is recommended for 1095.
I just quenched three 3/16 Saber beveled blades leaving more at the edge than I normally do and a very gradual transition from ricasso to bevel. I used the fastest quenchant I could find anywhere, it's made up of only 2 elements and it's recommended by the folks who make 1095 - WATER. No pings, no cracks, no problem. I will have these Rockwell tested early this week and report the findings here. The Saber (scandi) bevel makes for a very structurally balanced blade when undergoing the very abrupt water quench. I suspect the water will yield the results (59-61Rc on the flats) I want and that is why it's recommended for 1095 - especially when you are working with thicker stock.
Oil and water don't mix and maybe they are not interchangeable as quenchants for thicker 1095 either. I don't think I can simplify the heat treating process any further but I will keep trying.
Jeff
Some of you may enjoy this: http://www.dfoggknives.com/Metallurgical/METALLURGICAL REPORT.htm
I have been quenching 3/16 1095 in Canola and have been unable to break 60Rc on the flats. I know the newer quenchants are miraculous but I like to keep things simple. I have not tried thin mineral oil but I suspect that it is faster than canola but still slower than what is recommended for 1095.
I just quenched three 3/16 Saber beveled blades leaving more at the edge than I normally do and a very gradual transition from ricasso to bevel. I used the fastest quenchant I could find anywhere, it's made up of only 2 elements and it's recommended by the folks who make 1095 - WATER. No pings, no cracks, no problem. I will have these Rockwell tested early this week and report the findings here. The Saber (scandi) bevel makes for a very structurally balanced blade when undergoing the very abrupt water quench. I suspect the water will yield the results (59-61Rc on the flats) I want and that is why it's recommended for 1095 - especially when you are working with thicker stock.
Oil and water don't mix and maybe they are not interchangeable as quenchants for thicker 1095 either. I don't think I can simplify the heat treating process any further but I will keep trying.
Jeff
Some of you may enjoy this: http://www.dfoggknives.com/Metallurgical/METALLURGICAL REPORT.htm
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