王哨兵, 孙文强, 王曼, et al. Application of Gleeble Thermal Simulation for Hot Plasticity of S32750 Austenito-Ferrite Duplex Steel[J]. Special Steel, 2022, 43(4): 5-9.
王哨兵, 孙文强, 王曼, et al. Application of Gleeble Thermal Simulation for Hot Plasticity of S32750 Austenito-Ferrite Duplex Steel[J]. Special Steel, 2022, 43(4): 5-9.DOI:
The hot plasticity of S32750 dual phase steel (/% :0. 20C
25. 50Cr
7. 05Ni
3. 50Mo
0. 28N) casting and solid-solution condition columnar zone and equiaxed zone at 1 000 ~ 1 200℃ is studied by Gleeble thermal. The results obtained elongation and reduction of area of the steel at 1 100 - 1 150 °C are best. With the analyzed by SEM
the S32750 steel is brittle fracture at 1 000 〜1 050 ℃
tough fracture at 1 050 ~ 1 150 ℃. and intergranular failure at 1 150 - 1 200 ℃. And the crack of S32750 steel is along interphase at 1 000 ~ 1 050 ℃
and along intergranular boundaryat 1 150-1 200 °C. The optimum thermoplastic temperature of S32750 steel is determined to be 1 150-1 200 ℃ by integrating the thermal simulation test.