One more remark: When you're talking about things like surface void formation you also have to consider and acknowledge interactions with sharpening media.
SiO2 can't cut carbides, period, so by using Washitas and JNats you basically guarantee that any alloy with significant-sized carbides will look like a void-ridden PoS under the scope.
There's nothing wrong with that, and I actually agree with many of your comments in other threads about why coarser-grained high-alloy steels requiring hard abrasives are overrated. With that said I think that you still need to appropriately qualify your remarks. Instead of "AI chisels have voids" it should be "AI chisels develop voids when sharpened with SiO2".