Results 71 to 80 of about 2,203 (204)

Mechanisms of Gravitational Influence on Weld Pool Behavior and Weld Bead Performance in Variable Polarity Plasma Arc Welding across Different Welding Position. [PDF]

Materials (Basel), 2023
Liu J, Jiang F, Chen S, Xu B, Zhang G, Cheng W, Ma X.   +6 more
europepmc   +1 more source

Feasibility of Red Mud Recycling via Hydrogen Plasma Smelting Reduction: Insights From Large‐Scale Laboratory Experiments

steel research international, EarlyView.
Red mud processing in a laboratory hydrogen plasma facility, exceeding one hundred grams of input material, to evaluate the first scale‐up steps for iron recovery. This study demonstrates the feasibility of red mud reduction and the removal of harmful elements.
Daniel Ernst, Jürgen Erich Platl, Daniela Pircher, Magdalena Kirchmair, Lukas Kölbl, Johannes Schenk, Susanne Michelic   +6 more
wiley   +1 more source

Tailored Hardening and Isothermal Bainitizing of Additively Manufactured Nitrogen‐Enhanced Martensitic Chromium Steel

steel research international, EarlyView.
Tailored heat treatments transform additively manufactured high‐nitrogen martensitic Cr steel from austenitic as‐built condition to high‐hardness states. Isothermal bainitizing at 250°C generates an ultrafine nanostructure and achieves higher hardness than conventional hardening and tempering, highlighting a promising postprocessing route for laser ...
Philip König, Sebastian Weber, Jonathan Lentz   +2 more
wiley   +1 more source

A shape optimization formulation of weld pool determination

Applied Mathematics Letters, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Abdelkrim Chakib, Abdellatif Ellabib, Abdeljalil Nachaoui, Mourad Nachaoui   +3 more
openaire   +3 more sources

Uncovering hidden bias in neutron diffraction residual strain measurements

Journal of Applied Crystallography, EarlyView.
This work demonstrates that diffraction‐based residual strain calculations and uncertainty estimates depend on how grain populations are sub‐sampled, with important implications for interpreting residual stresses in heterogeneous materials with fine‐scale microstructure and strain gradients.When calculating residual strain via neutron or X‐ray ...
Cole Franz, Michael Prime, Jeffrey Bunn, Andrew Payzant, Katharine Page   +4 more
wiley   +1 more source

Effects of Welding Speed and Pulse Frequency on Surface Depression in Variable Polarity Gas Tungsten Arc Welding of Aluminum Alloy

Metals, 2019
A three-dimensional (3D) numerical model with the volume of fluid method is developed for high-speed variable polarity gas tungsten arc welding (VP-GTAW) of aluminum alloys.
Jun Du, Guangxi Zhao, Zhengying Wei
doaj   +1 more source

Stability of Weld Pool and Elimination of Weld Defects in Aluminum Alloy Plasma Arc Keyhole Welding at Continuously Varying Positions. [PDF]

Materials (Basel), 2021
Cheng W, Ma X, Zhang J, Yan Z, Jiang F, Chen S.   +5 more
europepmc   +1 more source

‘The White Hordes From the West’: Race and Refuge in Australian Media Commentary About White Rhodesians During Zimbabwe's Decolonisation

Australian Journal of Politics &History, EarlyView.
ABSTRACT This article explores Australian media commentary on white Rhodesians migrating to Australia, focusing on the period of Malcolm Fraser's prime ministership (1975–1983). The main argument is that the Australian media debates about whether to classify white Rhodesians as ‘migrants’ or ‘refugees’ were not merely semantic but reflected a deeper ...
George Bishi, Ana Stevenson
wiley   +1 more source

Effect of asymmetric arc oscillation on weld formation in narrow gap by transverse welding of titanium alloy

Hanjie xuebao
During the transverse welding of titanium alloy thick plates, the molten pool exhibits asymmetric flow within the narrow gap groove due to gravity, which affects weld formation.
Xiaojun TANG, Qi SUN, Yibo LIU, Chengyin LIU, Qingjie SUN   +4 more
doaj   +1 more source

Numerical Analysis of Keyhole and Weld Pool Behaviors in Ultrasonic-Assisted Plasma Arc Welding Process. [PDF]

Materials (Basel), 2021
Qiao J, Wu C, Li Y.
europepmc   +1 more source