1 State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, Liaoning, China 2 Laboratory for Excellence in Advanced Steel Research, Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, El Paso, TX 79668, USA
Signifcant impact of cold-rolling deformation and annealing on damping capacity of Fe–Mn–Cr alloy
1 State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, Liaoning, China 2 Laboratory for Excellence in Advanced Steel Research, Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, El Paso, TX 79668, USA
摘要 The infuences of cold-rolling deformation and annealing on the damping capacity of Fe–19Mn–8Cr alloy were investigated. It was observed that the cold-rolled Fe–19Mn–8Cr alloy with a reduction of 10% showed the relatively excellent damping capacity because of the relatively more ε-martensite and lower dislocation density, and the reduction of slopes of diferent damping curves increased along with increasing the cold-rolling reduction. Besides, the subsequent annealing process can further enhance the damping capacity. After 70% cold-rolling deformation, the austenite grain would grow up with the increase in the annealing temperature, which resulted in a signifcant change in the content and morphology of ε-martensite infuencing the damping capacity of the experimental steel. The damping capacity was optimum when annealed at 800 °C for 30 min, displaying that the size of ε-martensite has a vital infuence on the damping capacity of the experimental alloy. This study may enrich the fundamental knowledge about how to ameliorate the damping capacity of Fe–Mn–Cr damping steels.
Abstract：The infuences of cold-rolling deformation and annealing on the damping capacity of Fe–19Mn–8Cr alloy were investigated. It was observed that the cold-rolled Fe–19Mn–8Cr alloy with a reduction of 10% showed the relatively excellent damping capacity because of the relatively more ε-martensite and lower dislocation density, and the reduction of slopes of diferent damping curves increased along with increasing the cold-rolling reduction. Besides, the subsequent annealing process can further enhance the damping capacity. After 70% cold-rolling deformation, the austenite grain would grow up with the increase in the annealing temperature, which resulted in a signifcant change in the content and morphology of ε-martensite infuencing the damping capacity of the experimental steel. The damping capacity was optimum when annealed at 800 °C for 30 min, displaying that the size of ε-martensite has a vital infuence on the damping capacity of the experimental alloy. This study may enrich the fundamental knowledge about how to ameliorate the damping capacity of Fe–Mn–Cr damping steels.
Bo Xia,Xiao?ming Zhang,R.D.K. Misra, et al. Signifcant impact of cold-rolling deformation and annealing on damping capacity of Fe–Mn–Cr alloy[J]. Journal of Iron and Steel Research International, 2020, 27(5): 566-576.
2020, Vol. 27 
