دانلود مقاله ISI انگلیسی شماره 109456
ترجمه فارسی عنوان مقاله

غلبه بر مقاومت به مقاومت در برابر قدرت، از طریق تشکیل یک فاز آستنیتی مقاوم در برابر حرارت و پلاستیک ناپایدار در فولاد سرد کار

عنوان انگلیسی
Overcoming the strengthductility trade-off via the formation of a thermally stable and plastically unstable austenitic phase in cold-worked steel
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
109456 2018 18 صفحه PDF
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Materials Science and Engineering: A, Volume 721, 4 April 2018, Pages 74-80

ترجمه کلمات کلیدی
مقاومت در برابر انعطاف پذیری، تغییر شکل پلاستیک تبدیل فاز مارنزیتی، دوقلو، آلیاژهای آهن،
کلمات کلیدی انگلیسی
Strength–ductility trade-off; Plastic deformation; Martensitic phase transformation; Twinning; Iron alloys;
پیش نمایش مقاله
پیش نمایش مقاله  غلبه بر مقاومت به مقاومت در برابر قدرت، از طریق تشکیل یک فاز آستنیتی مقاوم در برابر حرارت و پلاستیک ناپایدار در فولاد سرد کار

A simple strategy associated with elastic properties that enables metals to undergo multiple plastic deformations based on slip deformation, mechanical twinning, and deformation-induced martensitic transformation was developed in this study. In the Fe–Ni–Al–C alloy designed in this work, the strength and ductility were not in the typical trade-off relationship. The alloy exhibited decreased elongation after strengthening by intermediate amounts of cold working, whereas upon further strengthening, the elongation improved markedly and returned to that in the pre-strengthened state. The tensile behaviors of samples of the alloy indicated that this was due to the thermally stable and plastically unstable austenitic phase that arose after cold working. The microstructures of the samples implied that this austenitic phase stability was due to the occurrence of simultaneous twinning during tensile deformation, and the effect of the plastic accommodation induced by the multiple deformations is discussed in this paper.