• Dr.KhidhairJasim Mohammed
Keywords: R18, phase transformations points, heat treatments, mechanical properties


As the high carbon high speed steel type R18 is a very abrasion resistant material due to its high hardness resulting from hard carbides and martensitic matrix .In this work we had tested , the spectra chemical composition, hardness , of that steel before and after heat treatment , and determination of phase transformation points by dilatometer during heating and cooling at the rates of 10 and 20 C˚/min. .Mechanical properties after different temperatures of heat treatments were tested. Valuable results were achieved .All results were shown in the tables (1-6) in the text, which could be considered as the continuation of many authors works, who tried other methods , in their investigations ..The main goal is  to has  high abrasion resistanse at high  temperature during high speed  machining.


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Author Biography

Dr.KhidhairJasim Mohammed


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How to Cite
Mohammed, D. (2019). INVESTIGATION OF HIGH SPEED STEEL (R18). IJRDO - Journal Of Mechanical And Civil Engineering (ISSN: 2456-1479), 5(4), 01-07. Retrieved from