CEMS study of strain induced phase transformation in manganese Hadfield steel |
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| Authors: | E. D. Cabanillas E. P. Alvarez A. Hey R. C. Mercader |
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| Affiliation: | (1) UTN-CIT Fac. Reg Buenos Aires, Dto de Materiales CNEA, CAC, CONICET, Ar del Libertador 8250, (1429) Buenos Aires, Argentina;(2) Fac. Reg. Buenos Aires, Dto de Materiales CNEA, CAC, UTN-CIT, Ar del Libertador 8250, (1429) Buenos Aires, Argentina;(3) Fac. de Cs. Exactas., Universidad Nacional de La Plata, CC 67, (1900) La Plata, Argentina |
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| Abstract: | A Conversion Electron Mössbauer Spectroscopy, (CEMS), study of phase transformations in a Hadfield steel induced by high rate strains is reported. Hadfield steel samples were impact deformed and the ensuing changes in the magnetic properties at the deformed zone and its surroundings have been studied by CEMS. The CEMS results are compared with wear tests and optical microscopy and show a formation of martensite by impact deformation only at the surface. Martensite is not produced by compression or tensile stresses but appears after wear tests in proportions that depend on the load and velocity conditions of test. The understanding of martensite phase formation and its evolution during deformation processes is also addressed. |
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