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The influence of V on hot Workability Behavior of TWIP Steel

机译：V对TWIP钢热可加工性能的影响

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The hot deformation behavior of austenitic Fe-Mn-C TWIP steels was studied.The basic composition of the steels is Fe-22Mn-0.6C,and one of them is further alloyed with 0.19％V.The characterization of the hot deformation behavior of these steels was done by compression testing.Compression tests were subsequently carried out at 800°C,850°C,900°C,950°C,1000oC and strain rates ranging from 0.01s-1 to 10s-1.Flow resistance curves during hot deformation,activation energies for plastic deformation were obtained.Furthermore,metallographic observation by optical microscopy (OM)) was done to assess the evolution of microstructure for the different deformation conditions.The results show that the hot deformation activity energy of Fe-22Mn-0.6C and Fe-22Mn-0.6C-0.19V TWIP steel are 421.37 kJ/mol and 486.477 kJ/mol respectively.The onset of dynamic recrystallization is significantly retarded by V alloying.
机译：研究了奥氏体Fe-Mn-C Twip钢的热变形行为。钢的基本组成是Fe-22mn-0.6c，其中一种具有0.19％V.热变形行为的表征这些钢通过压缩试验完成。随后在800℃，850℃，900℃，950℃，1000℃和应变率下进行的压抑试验，在0.01s-1至10s -11-11.流动曲线期间获得热变形，获得塑性变形的活化能量。用热敏，通过光学显微镜（OM））的金相观察来评估不同变形条件的微观结构的演变。结果表明Fe-22mn的热变形活性能量0.6C和Fe-22Mn-0.6C-0.19V Twip钢分别为421.37 kJ / mol和486.477 kJ / mol。动态再结晶的发作明显延迟了V合金化。

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