Effect of annealing process on microstructure and mechanical properties of high manganese austenitic TWIP steel

نویسندگان
Najafizadeh, A. ID 1
Karkeh Abadi, M. M. ID 2
Kermanpur, A. ID 3
Mazaheri, Y. ID 4

1 Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran

2 Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran

3 Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran

4 Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran

doi
چکیده

In the present study, the influence of annealing temperature on mechanical properties and the microstructure of a high manganese austenitic steel (Fe-30Mn-4Al-4Si-0.5C) was investigated. X-ray diffractometry, optical and scanning electron microscopy, hardness and tensile tests were used to analyze the relationship between mechanical properties and microstructure after annealing process. The results indicated an optimum combination of strength and elongation under the condition of high cold rolling reduction with subsequent annealing in the partial recrystallization region.

کلیدواژه‌ها
High manganese steel, Stacking fault energy, Mechanical twinning, Mechanical properties