Abrasion resistance vs wear resistance

[jakehobackknives]

So this is the best place I could think to ask this. Kinda off topic, but...

are abrasion resistance and wear resistance the same thing when talking about steel?

I have been working with some AR500 steel for some reaction targets and the manufacture says that it is very abrasion resistant steel. Its not any harder to work than hardened blade steel but it peeked my curiosity.

thanks

 

[mete]

Two words meaning the same thing. I don't know why there's concern about abrasion resistance in an armor plate steel. A knife's wear resistance is due to martensite and it's carbon content and any carbides .Tool steels are usually high enough carbon to produce carbides.

 

[jakehobackknives]

I figured it was similar terminology. Armor plate needs to be wear resistant so that a high velocity projectile will be abraided by the steel and destroyed before it can use its kinetic energy to pierce the armor. Plus it has to be fairly soft compared to what we use for blades so that it doesn't break or fracture.

This AR500 I'm using will take a 168 gn fmj .308 round at 40 yards and only leave a very small lead dust print neat stuff. Should hold up to .50 at 1000 yards for a little while longer than .5" mild plate we were using.

Funny thing is this AR500 is only .250 thick I am worried about higher velocity rounds at close ranges. I have heard you can pierce this stuff with a 5.56 m855 round if within 20 yards. But they are pushing 3000 fps