Results 81 to 90 of about 850,188 (330)

Austenite formation and cementite dissolution during intercritical annealing of a medium-manganese steel from a martensitic condition

open access: yesMaterials & Design, 2021
In the present study, in situ high-energy X-ray diffraction (HEXRD), dilatometry, and metallography were conducted for the purpose of understanding microstructure evolution during intercritical annealing of a Fe-0.19C-4.39Mn steel from a martensitic ...
J.J. Mueller   +8 more
doaj   +1 more source

Understanding the interaction between a steel microstructure and hydrogen [PDF]

open access: yes, 2018
The present work provides an overview of the work on the interaction between hydrogen (H) and the steel’s microstructure. Different techniques are used to evaluate the H-induced damage phenomena. The impact of H charging on multiphase high-strength
Depover, Tom   +5 more
core   +2 more sources

Shape‐Memory Alloy Torsion Strips for Soft Robotic Manipulation and Morphing

open access: yesAdvanced Intelligent Systems, EarlyView.
In this research, a dedicated configuration of SMA strip is proposed for soft robotic manipulation and morphing. This configuration has broad application prospects and demonstrates remarkable advantages in soft body joint operations. Mimicking invertebrates, soft robots tend to control each of their body joints to achieve the desired shape changes and ...
Changchun Wu   +6 more
wiley   +1 more source

OIM analysis of microstructure and texture of a TRIP assisted steel after static and dynamic deformation [PDF]

open access: yes, 2010
TRIP-assisted steel with a composition of 0.2%C, 1.6%Mn, 1.5%Al was studied in the undeformed state, after the application of 10 and 30 % static tensile strain parallel to rolling the direction of the sheet and after dynamic (Hopkinson) fracture test ...
Bouquerel, J.   +5 more
core   +2 more sources

A Neural Network‐Based Self‐Sensing Embedded Position Control System for Shape Memory Alloy Wire Actuators

open access: yesAdvanced Intelligent Systems, EarlyView.
Shape memory alloy wires exhibit thermally induced phase changes that generate actuation strain and resistance variations enabling self‐sensing. However, hysteretic electromechanical behavior complicates accurate state estimation. This paper presents an artificial in‐based self‐sensing method to reconstruct SMA actuator position in real time, achieving
Krunal Koshiya   +2 more
wiley   +1 more source

Controlling the work hardening of martensite to increase the strength/ductility balance in quenched and partitioned steels

open access: yesMaterials & Design, 2017
The role of retained austenite on tensile behavior in quenched and partitioned (Q&P) steels has been studied extensively, but the deformation behavior of martensite, which comprises the majority of Q&P microstructures, has received less attention.
K.O. Findley   +3 more
doaj   +1 more source

New Multiphase CP and DP 1000 MPa strength level grades for improved performance after hot forming [PDF]

open access: yes, 2019
Pure martensitic steels have after hot forming limited performance in terms of rest ductility which limits the application in crash relevant parts. New steel grades were designed in the EU project HOTFORM including the corresponding process routes. These
Aranguren, Iñigo   +6 more
core   +1 more source

Electroforming Thin Fe Foils Using ChCl/Urea Deep Eutectic Solvent: Effects of MnCl2 and Current Density on Microstructure and Corrosion Behavior

open access: yesMetalMat, EarlyView.
This study reports the electroforming of Fe thin foils using ChCl/urea DES. It analyzes the effect of current density and MnCl2 addition in the electroformed samples’ composition and corrosion behavior. It presents new insights into Mn incorporation via Fe₂O₃ doping in the Fe matrix.
Vinicius Sales   +5 more
wiley   +1 more source

Interaction of martensite and bainite transformations and its dependence on quenching temperature in intercritical quenching and partitioning steels

open access: yesMaterials & Design, 2019
A series of quenching temperatures (QT) were applied to investigate the interaction of bainite and martensite transformations in intercritical quenching and partitioning steels with multiple-stage martensite transformation.
Fei Peng   +4 more
doaj   +1 more source

Metal Hydrides‐Based Hydrogen Purification Systems—A Review

open access: yesMetalMat, EarlyView.
Metal hydrides as an innovative means to purify hydrogen can enable new avenues in the use of hydrogen as a clean energy vector across its production methods. ABSTRACT This review investigates the critical role of purification for enabling the use of hydrogen from various production pathways.
Cameron Reid   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy