id	keyword
ajst-17941	treatment
ajst-17941	cryogenic
ajst-17941	wear
ajst-17941	steel
ajst-17941	austenite
ajst-17941	resistance
ajst-17941	time
ajst-17941	martensite
ajst-17941	hardness
ajst-17941	sample
ajst-17941	cryogenic treatment