Microstructures and mechanical property of a Fe-Ni-Al-C alloy containing B2 intermetallic compounds

38th Risø International Symposium on Materials Science

Gao, Si^1 ; Bai, Yu^1,2 ; Shibata, Akinobu^1,2 ; Tsuji, Nobuhiro^1,2

Department of Materials Science and Engineering, Kyoto University, Sakyo-ku Kyoto

606-8501, Japan^1

Elements Strategy Initiative for Structural Materials (ESISM), Kyoto University, Yoshida Honmachi, Sakyo-ku, Kyoto

606-8501, Japan^2

关键词: Annealing treatments;    B2 phase;    Dual phase microstructure;    Fe-Ni-Al;    Microstructures and mechanical properties;    Temperature range;    Ultra-fine-grained;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/219/1/012020/pdf
DOI  :  10.1088/1757-899X/219/1/012020

来源: IOP

【 摘 要 】

Specimens of a Fe-24Ni-6Al-0.4C alloy with ultra-fine grained dual phase microstructures composed of FCC austenite and B2 phases were fabricated by cold rolling followed by annealing treatments in the temperature range from 850°C to 1100°C. Tensile tests of these specimens revealed a similar yield stress while the tensile strength was found to vary significantly. The different tensile strength of the samples was considered to be caused by the different volume fractions of the hard B2 phase.