Results 81 to 90 of about 15,379 (289)

Elemental partitioning as a route to decrease HAZ hardness

Journal of Materials Research and Technology, 2023
In the present study, in order to find out a valuable method to decrease the hardness of heat-affected zone (HAZ), elemental partitioning was introduced before welding simulation to realize elemental redistribution. The results demonstrate that about 10%
Li Wan, Shumeng Lu, Shanju Zheng, Mengnie Li, Yonghua Duan, Zhongdong Xu   +5 more
doaj   +1 more source

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

Advanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk, Farhan Hossain, Felipe A. Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source

Phase reversion mediated the dual heterogeneity of grain size and dislocation density in an equiatomic CrCoNi medium-entropy alloy

Journal of Materials Research and Technology
An ultra-high strain rate (104 s−1) dynamic plastic deformation treatment at liquid nitrogen temperature (LNT-DPD) followed by annealing is carried out to obtain dual heterogeneity of grain size and dislocation density in an equiatomic CrCoNi medium ...
Kun Jiang, Jianguo Li, Xi Chen, Bin Gan, Qingbo Dou, Tao Suo   +5 more
doaj   +1 more source

Bending crystals: Emergence of fractal dislocation structures

, 2010
We provide a minimal continuum model for mesoscale plasticity, explaining the cellular dislocation structures observed in deformed crystals. Our dislocation density tensor evolves from random, smooth initial conditions to form self-similar structures ...
James P. Sethna, Stefanos Papanikolaou, T. Mura, Woosong Choi, Yong S. Chen   +4 more
core   +1 more source

Unraveling the Effect of Tramp Elements on Phase Transformations in Steels by Combining CALPHAD Modeling and Experiments

Advanced Engineering Materials, EarlyView.
This study investigates how tramp elements from increased scrap usage influence phase transformations in low‐alloyed steel. Combining dilatometry and microscopy reveal that tramp elements delay transformations, reduce critical cooling rates and increase hardenability.
Lukas Hatzenbichler, Daniel Marian Ogris, Phillip Haslberger, Matthew Galler, Oleksandr Glushko, Ronald Schnitzer   +5 more
wiley   +1 more source

Multiscale characterization of dislocation development during cyclic bending under tension in commercially pure titanium

Journal of Materials Research and Technology
Cyclic bending under tension (CBT) has been shown to increase room temperature elongation-to-failure in various sheet metals beyond that of simple tension.
Nathan Miller, Nicholas Pitkin, Talukder Musfika Tasnim Oishi, Desmond Mensah, Marko Knezevic, Michael Miles, David Fullwood   +6 more
doaj   +1 more source

Microstructure and deformation behavior of a novel steel rebar: Effect of the heterogeneous microstructure of soft ferrite and Hard bainite

Journal of Materials Research and Technology, 2020
This study reports a detailed investigation of the deformation behavior and microstructural evolution of a novel ultra-low carbon Cr-Mo alloyed dual-phase steel rebar aimed for marine applications.
Dan Song, Guowei Wang, Falin Yang, Huande Chen, Ningning Liang, Han Ma, Jinghua Jiang, Xiaolong Ma   +7 more
doaj   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Cartan's spiral staircase in physics and, in particular, in the gauge theory of dislocations

, 2010
In 1922, Cartan introduced in differential geometry, besides the Riemannian curvature, the new concept of torsion. He visualized a homogeneous and isotropic distribution of torsion in three dimensions (3d) by the "helical staircase", which he constructed
A. Trautman, A. Zeghadi, A.A. García, A.C. Eringen, C. Malyshev, D. Klemm, E. et F. Cosserat, E. Kröner, E. Kröner, E. Kröner, E. Kröner, E.W. Mielke, E.W. Mielke, E.W. Mielke, F. Gronwald, F. Gronwald, F.W. Hehl, F.W. Hehl, F.W. Hehl, F.W. Hehl, F.W. Hehl, Friedrich W. Hehl, G. Capriz, G.A. Maugin, G.A. Maugin, G.A. Maugin, H. Kleinert, H. Schaefer, J.D. Eshelby, J.M. Nester, J.W. Maluf, K.F. Shie, M. Bañados, M. Kleman, M. Lazar, M. Lazar, M. Lazar, M. Lazar, M. Lazar, M. Lazar, M. Lazar, M. Lazar, M. Lazar, M.L. Ruggiero, M.O. Katanaev, M.O. Katanaev, Markus Lazar, O. Costa de Beauregard, P. Baekler, P. Baekler, R.A. Puntigam, S. Carlip, W. Günther, W. Jaunzemis, W. Voigt, É. Cartan, É. Cartan   +56 more
core   +1 more source