Results 131 to 140 of about 45,082 (299)
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 +6 more
wiley +1 more source
, 2013 High engineering critical current density JE of >500 A/mm2 at 20 T and 4.2 K can be regularly achieved in Ag-sheathed multifilamentary Bi2Sr2CaCu2Ox (Bi-2212) round wire when the sample length is several centimeters. However, JE(20 T) in Bi-2212 wires of
Cooley, L. +3 more
core +1 more source
Advanced Engineering Materials, EarlyView.Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm +5 more
wiley +1 more source
Evaluation of some candidate materials for automobile thermal reactors in engine-dynamometer screening tests [PDF]
Fourteen materials were evaluated in engine screening tests on full-size thermal reactors for automobile engine pollution control systems. Cyclic test-stand engine operation provided 2 hours at 1040 C and a 20-minute air-cool to 70 C each test cycle ...
Oldrieve, R. E.
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Deformation and rupture of stainless steel under cyclic, torsional creep [PDF]
, 2008 Copyright 2008 @ Engineering Integrity Society.Recent results from a long-term, strain-limited, cyclic creep test program upon stainless steel tubes are given.
Rees, DWA
core
Advanced Engineering Materials, EarlyView.This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm +6 more
wiley +1 more source
Fractional Order Analysis of Creep Characteristics of Sandstone with Multiscale Damage
MathematicsDeep mining is often accompanied by complex geological conditions, which can cause damage to the coal seam roof surrounding rock, thereby reducing its safety and stability.
Shuai Yang +4 more
doaj +1 more source
Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys
Advanced Engineering Materials, EarlyView.This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa +9 more
wiley +1 more source
Thermal Characterization and Lifetime Prediction of LED Boards for SSL Lamp [PDF]
, 2013 This work presents a detailed 3-D thermo-mechanical modelling of two LED board technologies to compare their performance. LED board are considered to be used in high power 800 lumen retrofit SSL (Solid State Lighting) lamp.
Formanek, J., Jakovenko, J.
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Low-cycle thermal-mechanical fatigue as an accelerated creep test
Procedia Engineering, 2010 AbstractAn accelerated creep test (ACT) has been developed for ferritic/martensitic creep resistant steels and weld metals, aiming to speed-up the microstructure transformation to the same extent like it occurs during real multi-year creep. Using low-cycle thermal-mechanical fatigue on Gleeble physical simulator, the compositions of precipitated phases,
openaire +1 more source