Results 41 to 50 of about 11,703 (260)

Experimental Evaluation of the Influences of Water on the Fracture Toughness of Mudstones with Bedding

Advances in Materials Science and Engineering, 2019
The effect of water on fracture toughness in various modes of mudstones was investigated using semicircular bend (SCB) specimens exposed to three-point bendings.
Jianfeng Yang, Li Li, Haojie Lian
doaj   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

Research on rock fracture pattern recognition based on convolutional neural networks and digital image correlation

Frontiers in Earth Science
Rock failure modes are a key factor for assessing the stability of geological structures and predicting crack propagation, and are critical to ensuring the safety of rock engineering.
Shuo Yang, Lihai Sun, Xiaojie Tang, Yuanhai Li, Xiangzheng Luo, Xiaohua Xu   +5 more
doaj   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Fatigue Behaviors of Resistance Spot Welds for 980 MPa Grade TRIP Steel

Metals, 2019
The fatigue life of the resistance spot weld of 980 MPa grade transformation induced plasticity (TRIP) steel was investigated and failure modes and fracture surfaces according to the fatigue load were analyzed.
Heewon Cho, Sangwoo Nam, Insung Hwang, Je Hoon Oh, Munjin Kang, Young-Min Kim   +5 more
doaj   +1 more source

Ontology‐Aligned Structuring and Reuse of Multimodal Materials Data and Workflows Toward Automatic Reproduction

Advanced Engineering Materials, EarlyView.
Reproduction of stacking fault energy calculations from literature with a semi‐automated large language model‐assisted extraction procedure: extraction of simulation protocol, atomistic structures, computational parameters, and reported results, ontology alignment, knowledge graph construction and, finally, recomputation forvalidation.
Sepideh Baghaee Ravari, Abril Azocar Guzman, Sarath Menon, Stefan Sandfeld, Tilmann Hickel, Markus Stricker   +5 more
wiley   +1 more source

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Effect of Mg interlayer on the microstructure and mechanical performance of resistance rivet welded 2 mm Al and ultra-high strength steel

Journal of Materials Research and Technology
Resistance rivet welding (RRW) using semi-tubular rivet was employed to join 2 mm thick AA6061 T6 Al alloy and ultra-high strength steel (UHSS). The influence of a Mg interlayer on the evolution of joint microstructure, mechanical performance and ...
Luyao Kong, Sizhe Niu, Ming Lou, Zixuan Chen, Yunwu Ma, Yongbing Li, Haiyang Lei   +6 more
doaj   +1 more source

Numerical modeling of fracture process using a new fracture constitutive model with applications to 2D and 3D engineering cases

Energy Science & Engineering, 2020
The overwhelming majority of experimental and numerical tests show the dependence of mechanical response on discontinuities (such as joints, faults, and bedding plane).
Junchao Chen, Lei Zhou, Alexandre I. Chemenda, Binwei Xia, Xiaopeng Su, Zhonghui Shen   +5 more
doaj   +1 more source