Effects of Strain Rate and Temperature on the Mechanical Properties of Medium Manganese Steels
The effects of temperature (-60 to 100℃) and strain rate (0.002 to 0.2s-1) on the properties of Al-alloyed 7 and 10 wt% Mn steels containing 34.8 and 57.3vol% austenite respectively were evaluated by tensile tests in isothermal liquid baths.The tensile strengths of both medium Mn steels increased with a decrease in temperature owing to the decreased austenite stability with a decrease in temperature.At lower temperatures the strength of the 10MnAl steel was highest,a consequence of the higher strain hardening rate caused by more austenite transformation to martensite with deformation.The resulting properties are assessed with a consideration of the effects of strain rate and deformation on adiabatic heating which was observed to be as high as 95℃.
austenite stability strain rate temperature mechanical properties
RANA Radhakanta MATLOCK David SPEER John DE MOOR Emmanuel
Currently at Tata Steel R&D, 1970CA IJmuiden, The Netherlands Advanced Steel Processing and Products Research Center,ColoradoSchool of Mines, Golden,Colorado80401
国际会议
成都
英文
119-122
2016-11-16（万方平台首次上网日期，不代表论文的发表时间）