2000•The Proceedings of Ibaraki District ConferenceOpen access
711 Compression behavior of Cementite and Cementite-Ferrite steel produced by mechanical alloying method
Masakazu Isaka, Tetsuya Suzuki, Yo Tomota, Minoru Umemoto, Koichi Tsuchiya, Motokazu Sawakami
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Abstract
Fe_3C, Fe_<80>C_<20>, Fe_<85>C_<15>, (Fe_<0.9>Cr_<0.1>)_<75>C_<25> and (Fe_<0.8>Cr_<0.2>)_<75>C_<25> were produced by mechanical alloying method and compression tests were carried out for these specimens at 293K and 773K. At 293K, Fe_3C shows compression strength of 2.6GPa with no plastic deformation. Addition of chromium increased the hardness and compression strength of Fe_3C. Increasing of iron content lowered the hardness and compression strength but increased the plastic strain. At 773K, plastic deformation was observed for all the specimens. Yield strength is increased by addition of chromium at 773K as well as at 293K.
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