Cyclic intercritical annealing of dual phase (DP) steel

سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 384

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شناسه ملی سند علمی:

IMES13_205

تاریخ نمایه سازی: 13 آبان 1398

چکیده مقاله:

Cyclic intercritical annealing treatment was applied on the DP steel with the initial quenched and cold rolled martesnitic microstructures. A rapid grain growth was observed during repetition of intercritical annealing cycle for the DP steel originated from the quenched microstructure with adverse effects on the tensile properties. Conversely, decreased size of martensite islands and formation of chain like morphology of martensite around ferrite grains was observed during thermal cycling of the DP steel originated from the cold rolled microstructure with the consequent enhanced work hardening behavior. Accordingly, the combination of cold rolling and cyclic intercritical annealing was recommended in this work to enhance the work hardening behavior and mechanical properties of DP steels.

نویسندگان

Yasamin Khebreh Farshchi

BSc student at university of tehran, school of metallurgy and materials engineering

Hamed Mirzadeh

Professor at university of tehran, school of metallurgy and materials engineering.