Results 101 to 110 of about 49,369 (306)

Mechanism of Plastic Deformation Localization in Polycrystalline Precipitation-Hardening Alloys

Механика машин, механизмов и материалов, 2016
The mechanism of strain localization of polycrystallic precipitation hardening materials based on the account of statistical dissipation in allocation of particles on slip planes and dissipation of the size of particles is proposed.
Vladimir A. Kukareko
doaj  

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

The investigation of the carbon on irradiation hardening and defect clustering in RPV model alloy using ion irradiation and OKMC simulation

Nuclear Engineering and Technology
The precipitation of solutes is a major cause of irradiation hardening and embrittlement limiting the service life of reactor pressure vessel (RPV) steels. Impurities play a significant role in the formation of precipitation in RPV materials.
Yitao Yang, Jianyang Li, Chonghong Zhang
doaj   +1 more source

Effect of applied pressure on microstructures of squeeze cast Mg–15Gd–1Zn–0.4Zr alloy

Journal of Magnesium and Alloys, 2018
Microstructural evolution of Mg–15Gd–1Zn–0.4Zr (GZ151K, wt%) alloys, cast under 0 MPa (gravity cast) and 6 MPa (squeeze cast), were comparatively studied.
Qian Zhao, Yujuan Wu, Wei Rong, Ke Wang, Lingyang Yuan, Xiangwen Heng, Liming Peng   +6 more
doaj   +1 more source

High strength steel in fire [PDF]

, 2015
High-performance materials are necessary to meet the future demands of the construction industry, which is strongly influenced by a growing population and depletion of natural resources. Sustainable development is central to research and development into
Barnes, AM, Cashell, K, Pargeter, RJ, Winful, DA   +3 more
core  

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

A multiscale investigation of hardening behavior in dispersoid-modified AlZnMg alloys

Materials & Design
While dispersoid-modified Al–Zn–Mg alloys have improved thermal stability compared to their unmodified variants, they generally exhibit a reduced age-hardening potential.
Viktor Wessely, Indranil Basu, Jeffrey M. Wheeler, Robin E. Schäublin, Ueli Töpfer, Stephan S.A. Gerstl, Stefan Pogatscher, Peter J. Uggowitzer, Jörg F. Löffler   +8 more
doaj   +1 more source

Welding thermal cycle-triggered precipitation processes in steel S700MC subjected to the thermo-mechanical control processing

Archives of Metallurgy and Materials, 2017
This study presents tests concerned with welding thermal process-induced precipitation processes taking place in 10 mm thick steel S700MC subjected to the Thermo-Mechanical Control Process (TMCP) with accelerated cooling.
Górka J.
doaj   +1 more source

Discrete dislocation dynamics simulations of dislocation-$\theta'$ precipitate interaction in Al-Cu alloys

, 2018
The mechanisms of dislocation/precipitate interaction were studied by means of discrete dislocation dynamics within a multiscale approach. Simulations were carried out using the discrete continuous method in combination with a fast Fourier transform ...
Capolungo, L., Esteban-Manzanares, G., LLorca, J., Papadimitriou, I., Santos-Güemes, R., Segurado, J.   +5 more
core   +1 more source

Phenomenological and Physically Based Modeling of Flow Stress and Strengthening Mechanism of Inconel 718

Advanced Engineering Materials, EarlyView.
Nickel‐based alloys are widely used in high‐temperature applications due to their excellent mechanical strength and oxidation resistance. However, properties such as high‐temperature strength and pronounced work‐hardening make them difficult to machine.
Soheil Rooein, Oliver Schenk, Christoph Broeckmann   +2 more
wiley   +1 more source