Results 21 to 30 of about 309,917 (203)

High-yttrium-content Hastelloy X fabricated by additive manufacturing: overcoming TCP phase-introduced embrittlement for enhanced creep resistance

open access: yesMaterials Research Letters
Contrary to conventional approach that enhanced high-temperature creep performance by adding low levels of yttrium, in this work, we innovatively added a high content of Y (0.76 wt.%) to Hastelloy X and utilized laser powder bed fusion to form uniformly ...
Xiaopeng Cheng   +5 more
doaj   +1 more source

Research on numerical simulation and process parameters of three-roll bending based on thickness characteristics of extra-thick plate

open access: yesAdvances in Mechanical Engineering, 2019
Mechanism of roll forming for the extra-thick plate is more complicated, which is greatly influenced by the thickness characteristics of extra-thick plate and affects the machining accuracy of the extra-thick plate.
Yan Wang   +3 more
doaj   +1 more source

Boundary conditions for free surface inlet and outlet\ud problems [PDF]

open access: yes, 2012
We investigate and compare the boundary conditions that are to be applied to free surface problems involving inlet and outlets of Newtonian fluid, typically found in coating processes.
Breward, C. J. W.   +3 more
core   +2 more sources

Achieving a corrosion-resistant Mg-Ca lean alloy by solidification control to sequester parts-per-million-level Fe impurity

open access: yesnpj Materials Degradation
The influence of solidification cooling rate on the microstructure, particularly Fe-rich particles, in a Mg-0.1Ca (wt%) alloy is studied, as well as the corresponding effect on the corrosion resistance. It is revealed that a slow cooling rate (
Yongzhen Qi   +6 more
doaj   +1 more source

Strength and ductility synergy in Mg-11Al alloys via Sc-microalloyed dual-wire arc additive manufacturing

open access: yesMaterials Research Letters
A dual-wire arc additive manufacturing (WAAM) strategy via in-situ alloying of AZ71 and Al-2Sc wires was proposed to fabricate a Mg-10.6Al-0.4Zn-0.2Mn-0.05Sc alloy, overcoming the limitation of wire fabrication and achieving synergistic improvement in ...
Xiang-Yang Yuan   +9 more
doaj   +1 more source

One-Time Roll-Forming Technology for High-Strength Steel Profiles with “日” Section

open access: yesAdvances in Materials Science and Engineering, 2019
Roll forming is an important processing method for the production of commercial vehicle anticollision beams, and edge buckling is one of the common defects in roll-forming process.
Jicai Liang   +6 more
doaj   +1 more source

3D finite element modeling of edge and width drop behavior in hot rolling mill [PDF]

open access: yes, 2017
Hot rough rolling is a conventional forming process in modern steelmaking practice in which high deformations are applied to a steel slab at high temperatures.
Bellemans, Inge   +4 more
core   +1 more source

Recent advances in self-powered implantable medical devices: Energy harvesting, conversion and therapeutic applications

open access: yesReview of Materials Research
Self-powered Implantable Medical Devices (SIMDs) have emerged with the convergence of bioelectronics and materials science, aiming to achieve autonomous power supply through integrated energy conversion modules. This reduces dependence of medical devices
Zihan Wang   +12 more
doaj   +1 more source

Effects of aging time on the microstructure and mechanical properties of 18Ni200 maraging steel

open access: yesJournal of Materials Research and Technology
This study investigates the effect of aging treatment on the precipitates and reverse transformed austenite (RTA) in 18Ni200 maraging steel by transmission electron microscopy (TEM), electron backscatter diffraction (EBSD), and X-ray diffraction (XRD ...
Zhibo Yang   +7 more
doaj   +1 more source

Design of three-roll bending machine tool and research on compensation algorithm

open access: yesAdvances in Mechanical Engineering, 2023
With the rapid development of profile processing industry, the processing shape, efficiency, and consistency of profiles are more and more demanding. In this case, the progress of bending machine tools was very important. In this study, the disadvantages
Haoyuan Liu   +4 more
doaj   +1 more source

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