نتایج جستجو برای: trip steel

تعداد نتایج: 91581  

Journal: :Metals 2021

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Journal: :Materials Science and Engineering A-structural Materials Properties Microstructure and Processing 2022

Quenching & Partitioning (Q&P) steels owe their good strength-ductility combinations to the martensite/austenite (α’/γ) mechanical interactions and formation of mechanically-induced martensite (α′mech) through transformation-induced plasticity (TRIP) effect. An essential role is played by carbon, whose distribution among phases can be modified Q&P route. This study presents a methodology system...

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Journal: :Ultramicroscopy 2011
O Dmitrieva P Choi S S A Gerstl D Ponge D Raabe

A precipitation hardened maraging TRIP steel was analyzed using a pulsed laser atom probe. The laser pulse energy was varied from 0.3 to 1.9 nJ to study its effect on the measured chemical compositions and spatial resolution. Compositional analyses using proximity histograms did not show any significant variations in the average matrix and precipitate compositions. The only remarkable change in...

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Journal: :Journal of the Society of Materials Science, Japan 2001

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Journal: :Silicon 2021

This research investigates the effect of SiC wt% on mechanical and microstructure behavior transformation induced plasticity (TRIP) 780 steels by resistance spot welding. The welded samples were characterized for their properties such as hardness, tensile shear, scanning electron microscope, X-ray diffraction, ductility ratio elongation. Results showed that width nugget was closely associated w...

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ژورنال: بین المللی مهندسی صنایع و مدیریت تولید 2008
Hosseinnejad, M.R., Ramzi, H.R.,

 Evaluation of intercity trips may be used for anticipation of trip demands, services’ pricing and improvement of the studies for contradiction determination. Usage of trip demand modeling processes, like what existed in the classic method for analyzing urban trip demand, would make the analysis of road trips possible. A substitute method for 4 Steps Models is to use Direct Demand Modeling whic...

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ژورنال: بین المللی مهندسی صنایع و مدیریت تولید 2008
Afandizadeh, Shahriar , Rahimi, Amir Masoud ,

  Evaluation of intercity trips may be used for anticipation of trip demands, services’ pricing and improvement of the studies for contradiction determination. Usage of trip demand modeling processes, like what existed in the classic method for analyzing urban trip demand, would make the analysis of road trips possible. A substitute method for 4 Steps Models is to use Direct Demand Modeling whi...

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2017
Zhiping Xiong Ahmed A. Saleh Ross Marceau A S. Taylor Z. P. Xiong A. A. Saleh R.K.W. Marceau A. S. Taylor N. E. Stanford A. G. Kostryzhev E. V. Pereloma

Knowledge of carbon content in retained austenite (RA) with different neighbouring phases is essential to understand the chemical stability of RA, which is useful for microstructure tuning of transformation-induced plasticity (TRIP) steels. The present study investigates different morphologies and chemical compositions of RA by correlating electron backscattering diffraction, transmission elect...

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پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390
یوسف نجاتی یده, محمد رضا قاسمی,

seismic retrofit strategies have been developed in the past few decades following the introduction of new seismic provisions and the availability of advanced materials and methods. it can be observed that new approaches to deal with more lateral forces are more innovative and more energy absorbent. in line with this, there is a growing trend toward the use of steel shear walls as a system with ...

15 صفحه اول
Journal: :Materials Science and Engineering: A 2013

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