Results 51 to 60 of about 1,149,094 (290)

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

open access: yesAdvanced 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

Microstructure evolution during homogenization and hot workability of 7055 aluminum alloy produced by twin-roll casting

open access: yesJournal of Materials Research and Technology, 2021
7055 aluminum alloy was produced by twin-roll casting (TRC) and by conventional mold casting (MC). Homogenization at 465 °C for 24 h with natural cooling was applied, followed by uniaxial hot compression tests to verify the hot workability of the alloy ...
Xiaoming Qian   +4 more
doaj   +1 more source

Hydrolysis of Dimethyl Methylphosphonate (DMMP) in Hot-Compressed Water

open access: yesThe Journal of Physical Chemistry A, 2020
Dimethyl methylphosphonate (DMMP) is widely used as a chemical surrogate for G- and V-type nerve agents, exhibiting similar physiochemical properties, yet significantly lower toxicity. Continuous hydrolysis of DMMP in hot-compressed water is performed at temperatures from 200 to 300 °C, pressures of 20 and 30 MPa, and residence ...
Brian R. Pinkard   +4 more
openaire   +2 more sources

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

open access: yesAdvanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati   +11 more
wiley   +1 more source

Enhanced creep resistance in Mg-Y-Nd alloy via regulating prior thermo-mechanical treatment

open access: yesJournal of Magnesium and Alloys
In this study, the tensile creep behavior of a hot-rolled Mg-4Y-3.5Nd alloy subjected to different prior thermo-mechanical treatments was investigated at 220 ℃.
Zhirou Zhang   +5 more
doaj   +1 more source

Effect of Ce addition on hot deformation behavior and microstructure evolution of AZ80 magnesium alloy

open access: yesJournal of Materials Research and Technology, 2022
Hot compression tests of AZ80 and AZ80-Ce alloys were conducted on a Gleeble-3800 simulator at strain rates of 0.01–10 s−1 and deformation temperatures of 340–420 °C.
Zhu-Jin Li   +6 more
doaj   +1 more source

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

open access: yesAdvanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ   +19 more
wiley   +1 more source

Flow Stress Behavior of 15%SiCP/8009 Aluminum Matrix Composite During Hot Compression Deformation

open access: yesJournal of Aeronautical Materials, 2017
The flow stress behavior of 15%SiCP/8009 aluminum matrix composite at deformation temperature of 400-550 ℃ and strain rate of 0.001-1 s-1 was studied by hot compression testing on the Gleeble-3500 thermal-mechanical simulator.
WANG Yu   +5 more
doaj   +1 more source

Impact of MgO Additions on the Oxidation Resistance and Compression Behavior of Vanadium Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
An increase in oxidation resistance at 600 °C is achieved for alloys containing more than 2.5 wt.% MgO. It has been established that, along with V2O5, MgO6V2, and Mg2O7V2 are formed, which are presumed to enhance oxidative stability. Furthermore, the possible transformation of Mg‐vanadates through reaction with CO2, which presumably occurs in this ...
Ievgen Solodkyi   +5 more
wiley   +1 more source

Deformation behavior, microstructure characterization, and dynamic recrystallization mechanism of Au-7.5Ni-1.5Cu alloy

open access: yesMaterials & Design
The application of Au-based alloys in precision instruments components has achieved good results as electric contact materials. In order to investigate the hot processing of Au-based alloys, the hot deformation behavior and dynamic recrystallization (DRX)
Xiaoyi Pu   +7 more
doaj   +1 more source

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