Results 31 to 40 of about 25,614 (293)

Effect of Zr Additions on Thermal Stability of Al-Cu Precipitates in As-Cast and Cold Worked Samples

Metals, 2018
While Zr is frequently added to Al alloys to control grain size with the formation of large (>1 μm) primary precipitates, little research has been conducted on the effect of nanoscale Al3Zr precipitates on Al alloys. By comparing the precipitation and
Kyle Deane, Paul Sanders
doaj   +1 more source

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

FEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane, Lea Nikolić, Lorenzo Maraio, Thomas Goiran, Nathan Karpilovsky, Stefano Sellitto, Vangelis Bouris, Jiang‐An Yin, Ronald Melki, Edward A Fon, Adriano Aguzzi, Elena De Cecco   +11 more
wiley   +1 more source

Microstructure and strengthening of Al-Li-Cu-Mg alloys and MMCs: II. Modelling of yield strength

, 1999
A detailed quantitative model for the strengthening of monolithic alloys and composites due to precipitation strengthening, solution strengthening, grain and subgrain strengthening, strengthening by dislocations and load transfer to ceramic inclusions is
Starink, M.J., Wang, P., I. Sinclair, P. Wang, Sinclair, I., P.J. Gregson, Gregson, P.J., M.J. Starink   +7 more
core   +1 more source

Influence of Vanadium on the Microstructure and Mechanical Properties of Medium-Carbon Steels for Wheels

Metals, 2018
Steels used for high-speed train wheels require a combination of high strength, toughness, and wear resistance. In 0.54% C-0.9% Si wheel steel, the addition of 0.075 or 0.12 wt % V can refine grains and increase the ferrite content and toughness ...
Pengfei Wang, Zhaodong Li, Guobiao Lin, Shitong Zhou, Caifu Yang, Qilong Yong   +5 more
doaj   +1 more source

Ultra-high work hardening mediated by three-level precipitation in a Ni2CoCr0.5Si0.3Al0.2Ti0.2 medium entropy alloy

Journal of Materials Research and Technology, 2023
The three levels of precipitation with the primary Ni16Ti6Si7 intermetallic, the secondary large-sized L12 phase and the tertiary diffused distributed nanoscale L12 particles is achieved in an aged Ni2CoCr0.5Si0.3Al0.2Ti0.2 medium entropy alloy (MEA ...
Shunhui Luo, Tuanwei Zhang, Hui Chang, Shiyu Du, Zhiming Jiao, Renlong Xiong, Hyoung Seop Kim, Zhihua Wang   +7 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Interfacial gradient M7C3 carbides precipitation behavior and strengthening mechanisms of stainless steel/carbon steel clad plates

, 2022
The mechanical incompatibilities between ferrite and martensite at the cladding interface of stainless steel (SS)/carbon steel (CS) clad plates can result in stress concentration and interface cracks.
Jihong Sun, Xuefeng Liu, Yaohua Yang, Wenjing Wang   +3 more
core   +1 more source

The effect of vanadium content on hierarchical martensite structure and yield strength of petroleum casing steels

Journal of Materials Research and Technology, 2022
In the present study, the influence of V content and tempering temperature on the precipitation behavior of hierarchical martensite and yield strength of petroleum casing steels has been systematically studied.
Huaying Li, Guangqi Wen, Zhihui Cai, Yi Feng, Lifeng Ma, Akang Han, Kaihua Zhang   +6 more
doaj   +1 more source

Enhancing Strength and Electrical Conductivity in Al–Zr–Sc Conductor Alloys Through Sn and Sr Microalloying and Two‐Step Aging Treatment

Advanced Engineering Materials, EarlyView.
Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao, Emad M. Elgallad, Alexandre Maltais, X.‐Grant Chen   +3 more
wiley   +1 more source

Extreme Precipitation Strengthening in Ion-Implanted Nickel [PDF]

, 1999
Precipitation strengthening of nickel was investigated using ion-implantation alloying and nanoindentation testing for particle separations in the nanometer range and volume fractions extending above 10O/O.
Follstaedt, D. M., J. A. Knapp, G. A. Petersen, D. M. Follstaedt, Knapp, J. A., Petersen, G. A., Myers, S. M., S. M. Myers   +7 more
core   +1 more source