Fe-25Mn-3Al-3Si TWIP-TRIP Steel Deformed at High Strain-Rates
نویسندگان
چکیده
منابع مشابه
Strain localization in polycarbonates deformed at high strain rates
We studied three-dimensional transient large coupled thermomechanical deformations of a polycarbonate (PC) plate with a through-the-thickness inhomogeneity at its centroid. The PC exhibits strain softening followed by strain hardening and its elastic moduli are taken to be functions of strain rate and temperature. The inhomogeneity is either a void or a region of initial temperature higher than...
متن کاملبررسی ریزساختار و خواص مکانیکی فولاد fe-31mn-3al-3si twip در هنگام تغییرشکل سرد
اخیراً، گروهی از فولادهای آستنیتی پرمنگنز همراه با برخی دیگر از عناصر آلیاژی معرفی شده اند که در آنها امکان دست یابی به ترکیب مناسبی از استحکام و انعطاف پذیری وجود دارد. با توجه به پایین بودن انرژی نقص در چیده شدن (sfe) در این فولادها، لغزش متقاطع نابجایی های گسترده به سختی صورت گرفته و در نتیجه تغییرشکل پلاستیکی ناشی از دوقلویی شدن (twip) در کنار لغزش نابجایی ها به عنوان مکانیزم های اصلی در تغی...
PREDICTION OF HOT DEFORMATION BEHAVIOUR OF A PH STAINLESS STEEL AT HIGH STRAIN RATES
In this study the hot deformation behaviour of a precipitation hardened (PH) stainless steel at high strain rates has been predicted through hot compression testing. Stress-strain curves were obtained for a range of strain rates from 10-3 to 10+1 S-1 and temperatures from 850 to 1150°C. Results obtained by microstructure and stress-strain curves show that at low temperatures and high strain rat...
متن کاملMechanical Behavior of TWIP Steel in High Strain Rate Torsional Test
Advanced high strength steels (AHSS) have recently attracted great attention because of their superior mechanical properties. A modern group of these steels, known as twinning induced plasticity (TWIP) steels, shows a unique combination of strength and ductility even at high rates of strain. In order to examine the functionality of such steels in dynamic loading conditions, their mechanical beh...
متن کاملObservation of Stacking Fault Tetrahedral in TWIP Steel
Low stacking fault energy face centered cubic (FCC) materials contain characteristic defect structures. Stacking fault tetrahedral are one of those rare structures that occur under special experimental conditions. For the first time, stacking fault tetrahedral were observed in Fe-30Mn-3Al-3Si twinning induced plasticity (TWIP) steel. Their presence resulted from a quenching heat treatment.
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ژورنال
عنوان ژورنال: Microscopy and Microanalysis
سال: 2015
ISSN: 1431-9276,1435-8115
DOI: 10.1017/s1431927615009502