Effect of Deformation Temperature on Mechanical Properties of High Manganese Austenitic Stainless Steel

고 Mn 오스테나이트계 스테인리스강의 기계적 성질에 미치는 가공온도의 영향

  • Received : 2012.04.05
  • Accepted : 2012.06.21
  • Published : 2012.06.30


This study was carried out to investigate the effect of the deformation temperature in high manganese austenitic stainless steel. ${\alpha}$'-martensite was formed with a specific direction by deformation. The volume fraction of the deformation induced martensite was increased by increasing the degree of deformation and decreasing the deformation temperature. With the increase in the deformation, the hardness and tensile strength were increased, while the elongation was rapidly decreased at the initial stage of the deformation, and then gradually decreased. The hardness and tensile strength were increased and the elongation was decreased with adecrease in the deformation temperature. The hardness and tensile strength were strongly controlled by the volume fraction of martensite, but the elongation was controlled by the transformation behavior of the deformation induced martensite.


High manganese austenitic stainless steel;Deformation temperature;Deformation induced martensite;Stable of austenite;Volume fraction of martensite


  1. Kang C.Y. and Sung J.H. (1990). "Effect of Deformation Temperature, Strain Rate and Grain Size on the Tensile Strength of 304 Stainless Steel", Korean Soci. Heat Treatment, Vol 16, No 1, pp 187-197.
  2. Kang C.Y., Um J.H., Kim H.J. and Sung J.S.(2007), "Effect of Grain Size on the Damping Capacity of Fe-26Al-2Al Alloy", The Korea Soci. for Power System Eng., Vol 11, No 1, pp 115-120.
  3. Lee Y.K., Jun, J.H. and Choi C.S.(1997). "Damping capacity in Fe-Mn binary alloy", ISIJ International, 37, pp 1023-1029.
  4. Nagy, E., Mertinger, V., Tranta, F. and Solyom, J.(2004). "Deformation induced martensitic transformation in stainless steels, Materials Science and Engineering A, 378, pp 308- 313.
  5. Nohara, K., Ono, Y. and Ohashi, N. (1977). "Composition and Grain Size Dependencies of Strainm-induced Martensitic Transformation in Metastable Austenitic Stainless Steel", Iron and Steel, 63, pp 212-222.
  6. Shon, D.W., Kim, J.H., Kim, I.S., Miyahara, K., Sung, J.H. and Kang, C,Y.(2004, a). "Effect of $\varepsilon$ Martensite on the Damping Capacity of Austenitic Stainless Steel", Korea J. of Met. & Mater., Vol 42, No 8, pp 621-625.
  7. Shon, D.W., Kang C.Y. and Sung, J.H. (2004, b). "Effect of Microstructure on the Damping Capacity and Strength in Fe- Al-Mn', SAE International, Vol 1, pp 745-750.
  8. Tomota, Y., Strum, M. and Morris, J.W.(1986). "Microstructural Dependence of Fe-high Mn Tensile Behavior", Metal. Trans., A, 17A, pp 537-543.