Results 21 to 30 of about 3,974 (264)

Effects of grain boundary engineering treatment on fretting wear behavior of Inconel 690TT alloy

Cailiao gongcheng, 2020
The grain boundary engineering (GBE) treatment of heat treatment and cold rolling was adopted.The fretting wear behavior of Inconel 690TT alloy in air at room temperature and 320 ℃ was studied by OM, SEM, EBSD and white light interferometer.
HAN Yong-ming, HAN Jun-ling, XIN Long, LIU Ting-guang, LU Yong-hao, SHOJI Tetsuo   +5 more
doaj   +1 more source

Grain boundary sliding associated with low strain rate at 1000°C in recrystallized ODS ferritic steel

Nuclear Materials and Energy, 2016
The high-temperature deformation process of the recrystallized 16CrODS ferritic steel was investigated at 1000°C for the stress loading perpendicular to the elongated grain structure.
R. Kamikawa, S. Ukai, N. Oono, T. Kaito, T. Torimaru, A. Kimura, S. Hayashi, H. Masuda, E. Sato   +8 more
doaj   +1 more source

Contribution of boundary non-stoichiometry to the lower-temperature plasticity in high-pressure sintered boron carbide

Nature Communications, 2023
The improvement of non-oxide ceramic plasticity while maintaining the high-temperature strength is a great challenge through the classical strategy, which generally includes decreasing grain size to several nanometers or adding ductile binder phase. Here,
Haiyue Xu, Wei Ji, Jiawei Jiang, Junliang Liu, Hao Wang, Fan Zhang, Ruohan Yu, Bingtian Tu, Jinyong Zhang, Ji Zou, Weimin Wang, Jinsong Wu, Zhengyi Fu   +12 more
doaj   +1 more source

An energy approach to predict electromigration induced grain rotation under high current density

Theoretical and Applied Mechanics Letters, 2019
An energy approach is proposed to describe the electromigration induced grain rotation under high current density. The driving force is assumed to arise from the grain-boundary energy reduction and increase of the inner energy from the joule heating ...
Yuexing Wang, Yao Yao
doaj   +1 more source

Superplastic Behavior of Overaged 2024 Aluminum Alloy after Friction Stir Processing

Metals, 2022
A commercial 2024 aluminum alloy was heat treated at 280 °C for 48 h and then slow cooled in a furnace to obtain minimum hardness. This material was then friction stir processed (FSP) using three sets of processing conditions.
Alberto Orozco-Caballero, Marta Álvarez-Leal, Fernando Carreño, Oscar A. Ruano   +3 more
doaj   +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

Low-temperature superplastic deformation mechanism of ultra-fine grain Ti–6Al–4V alloy by friction stir processing

Journal of Materials Research and Technology
The ultra-fine grain Ti–6Al–4V alloy sheet was successfully achieved by friction stir processing (FSP). The low-temperature superplastic deformation mechanism of Ti–6Al–4V alloy under the strain rate of 3 × 10−4 s−1 at 600 °C was studied by scanning ...
Fei Qiang, Shewei Xin, Xingyang Tu, Huan Wang, Ping Guo, Hongmiao Hou, Zhiwei Lian, Lei Zhang, Wentao Hou   +8 more
doaj   +1 more source

Field Report from Collaborative Research Center 1625: Heterogeneous Research Data Management Using Ontology Representations

Advanced Engineering Materials, EarlyView.
A unified research data management framework for heterogeneous materials data is presented. The system integrates multimodal datasets using ontologies and knowledge graphs, enabling interoperability and FAIR (findable, accessible, interoperable, reusable) data principles. By linking data across scales and workflows, it supports reproducible, Artifitial
Doaa Mohamed, Samuel García Vázquez, Behnam Mardani, Victor Dudarev, Alfred Ludwig, Maribel Acosta, Markus Stricker   +6 more
wiley   +1 more source

Achieving high-plasticity pure aluminium from wire-based friction stir additive manufacturing

Materials Research Letters
In the request for sustainable development in complex components manufacturing, designing room-temperature high-plasticity material with simpler alloys becomes paramount.
Zeyu Zhang, Long Wan, Yuming Xie, Qi Wen, Dongxin Mao, Wenjiang Dong, Xiuwen Sun, Huijia Tian, Xiangchen Meng, Yongxian Huang   +9 more
doaj   +1 more source

Effect of Rare Earth Yttrium on the Hot Ductility of Fe-36Ni Invar Alloy

High Temperature Materials and Processes, 2014
The hot ductility of Fe-36Ni invar alloy doped with and without yttrium was investigated using a Gleeble-3800 thermal-mechanical simulator over the temperature range 850–1050 °C and the improvement mechanism of the hot ductility was analysed with a ...
Yu Y. C., Liu H. T., Chen W. Q., Zheng H. G.   +3 more
doaj   +1 more source