Vassili,
I think that any increase which we can obtain from steel with surface pattern (and composite inner structure) should be compared only with chemically identical steel but "homogenious"/ I feel increase of cutting ability of composite steel - more agressive cut and maybe longer edge holding. My previous post was all about properties and no word about pattern!
As for D2 with surface pattern, blades (Kh12MF-sh) of Anton Elistratov demonstrates excellent properties in comparison with same patternless steel. But I think it is incorrect to directly compare D2 with 1095 or CPM 15V: each steel has set of strengths and weaknesses in technological, exploitation properties. My opinion is that there is a fine set of properties for bulat/wootz: easy to sharpening, good edge holding (unfortunately not highest), very high grinding and polishing ability, good toughness and hardness, they are easiest (I think best) in cutting. Modern high-tech highly alloyed tool steels (especially powder steels) commonly have following set of properties: highest wear resistance (edge holding), heat resistance (useless for knives), too complex heat treatment, bad polishing ability and at last they are hard for sharpening.
Everyone can evaluate his own pro et contra
PS and, Bulat pattern is beautiful , isn't it?
I think that any increase which we can obtain from steel with surface pattern (and composite inner structure) should be compared only with chemically identical steel but "homogenious"/ I feel increase of cutting ability of composite steel - more agressive cut and maybe longer edge holding. My previous post was all about properties and no word about pattern!
As for D2 with surface pattern, blades (Kh12MF-sh) of Anton Elistratov demonstrates excellent properties in comparison with same patternless steel. But I think it is incorrect to directly compare D2 with 1095 or CPM 15V: each steel has set of strengths and weaknesses in technological, exploitation properties. My opinion is that there is a fine set of properties for bulat/wootz: easy to sharpening, good edge holding (unfortunately not highest), very high grinding and polishing ability, good toughness and hardness, they are easiest (I think best) in cutting. Modern high-tech highly alloyed tool steels (especially powder steels) commonly have following set of properties: highest wear resistance (edge holding), heat resistance (useless for knives), too complex heat treatment, bad polishing ability and at last they are hard for sharpening.
Everyone can evaluate his own pro et contra
PS and, Bulat pattern is beautiful , isn't it?
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