TY - GEN AU - Sivahar, Vigneswaran TI - Non-destructive evaluation of hardness of stell through ultrasonic attenuation using ultrasonic flaw detector PY - 2009///] KW - MATERIALS ENGINEERING - Thesis KW - STEEL - Testing KW - NONDESTRUCTIVE EXAMINATION KW - ULTRASONIC EQUIPMENT KW - Master of Philosophy N1 - TH1789 UR - http://dl.lib.mrt.ac.lk/handle/123/1834 ER -