Results 81 to 90 of about 64,636 (303)

Optimizing austempering for lower bainite formation in DC53 steel: mechanisms for enhanced strength and toughness

Materials & Design
This study aims to enhance the strength-toughness properties of DC53 cold work die steel by optimizing the austempering process. Compared to high-temperature tempering, the optimal austempering process increases unnotched impact toughness from 32.8 J/cm2
Yuxiang Liu, Zhigang Wang, Zhongguo Liu, Xiaoqiang Hu, Fusheng Zhu, Aimin Zhao   +5 more
doaj   +1 more source

Fabrication of Wear and Corrosion Resisting G3 Alloy-like Coating on P110 Steel by Double Glow Plasma Alloying

International Journal of Electrochemical Science, 2015
There is a need for oil casing tubes to resist both wear and corrosion attacks during operation. In the present work, a G3 alloy-like coating has been formed on P110 oil casing tube steel via double glow plasma surface alloying using a G3 alloy source ...
Wei Tian, Wenhai Yu, Naiming Lin, Jiaojuan Zou, Junwen Guo, Hongyan Zhang, Peng Zhou, Ruizhen Xie, Yong Ma, Zhenxia Wang, Xiaofei Yao, Pengju Han, Xiaoping Liu, Bin Tang   +13 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

Texture Evolution of AZ31 Magnesium Alloy Sheet at High Strain Rates

, 2010
In the current contribution the mechanical behaviour at high strain rates of AZ31 magnesium alloy sheet is studied. Uniaxial deformation properties were studied by means of tensile split Hopkinson pressure bar (SHPB) at different temperatures.
Hurtado, I., Letzig, D., Gálvez, F., Yi, S., Pérez-Prado, M. T., Dudamell, N. V., Pérez Prado, María Teresa, Dudamell, N.V., Ulacia, I., Gálvez Díaz-Rubio, Francisco   +9 more
core   +1 more source

Influence of corrosion and creep on intergranular fatigue crack path in 2XXX aluminium alloys [PDF]

, 2010
In this paper, two examples of the influence of time-dependent processes on crack path in two 2XXX aluminium alloys are presented. The first example is concerned with corrosion–fatigue crack growth resistance of a 2024 T351 alloy cracked in the S–L ...
Odemer, Grégory, Hénaff, Gilbert, Menan, Frédéric   +2 more
core   +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

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

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, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

The Effect of Nickel Plating on Hydrogen Embrittlement of High Strength Steel. [PDF]

, 1992
The microstructure of high strength steel is susceptible to delayed failure caused by the absorption of hydrogen produced either during cathodic charging or electroplating. When 0.8%C and AISI 4340 steel are subjected to constant load testing, a wide
Evans, Juliet M.
core  

Effects of Y addition on carbide morphology and impact properties of D2 cold work die steel

Journal of Materials Research and Technology
In this study, heavy rare-earth Y element was added to D2 cold work die steel to improve its carbide morphology and distribution, thereby increasing its impact resistance. A comprehensive study was conducted on the morphology and distribution of carbides
Yuxiang Liu, Zhigang Wang, Xiaoqiang Hu, Ping Zhu, Yukang Xiong, Aiming Zhao, Kuo Cao   +6 more
doaj   +1 more source