Results 71 to 80 of about 14,702 (265)

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Separating the Role of Mixing‐Entropy on the Dynamics of Glass‐Forming Liquids

Advanced Science
While the concept of high entropy has gained prominence in materials design, disentangling specific impacts of entropy on material properties from the enthalpy of mixing remains elusive.
Qing‐Zhou Bu, Jia‐Xin Zhang, Hui‐Ru Zhang, Ran Li, Tao Zhang, Lin Liu, Peng Yu, Hai‐Bin Yu   +7 more
doaj   +1 more source

Study of Alloying Process on 40Cr Surface with Electron Beam after Electroplated Cr Layer

Advances in Materials Science and Engineering, 2013
The electroplated hard chromium coat was selected as precoating to improve surface properties of 40Cr. Then electron beam alloying process was experimentalized.
Xu Hongbin, Hu Jianjun, Li Hui, Mao Rongshan, Sun Fei, Hou Tianfeng   +5 more
doaj   +1 more source

Tuning graphene/Ti composite interfaces: How alloying elements modify electronic structure and interfacial properties [PDF]

Nanotechnology and Precision Engineering
Graphene/Ti composites have attracted significant attention from researchers owing to their exceptional strength, ductility, and impact resistance. However, the high chemical reactivity of titanium complicates the interfacial structure and presents ...
Jiaying Chen, Nan Qu, Longlong Dong, Shuang Zhang, Yong Liu, Wei Zhang, Wenjiong Zhai, Jingchuan Zhu   +7 more
doaj   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

First-principles investigation on site preferences and elastic properties of γ′-Pt3Al with ternary alloying elements X (X = Ni, Ru, Re)

Journal of Materials Research and Technology
In this study, the site preferences and elastic properties of γ′-Pt3Al doped with ternary alloying elements Ni, Ru, and Re were systematically investigated using first-principles calculations.
Bixia Yao, Guanhua Qin, Ruiling Gao, Chao Liu, Rui Chen, Hui Zhang, Xi Li, Wei Ren   +7 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Enhanced vacancy-interstitial annihilation via sliding, rotation and emission of the interstitial in tungsten

Nuclear Materials and Energy
Experimental studies have demonstrated that introducing alloying elements into bulk tungsten effectively mitigates radiation-induced swelling. This improvement is attributed to enhanced annihilation between vacancies and self-interstitial atoms (SIAs ...
Yi Hu, Xiaolin Li, Fangqing Qian, He Tong, Changjie Ding, Shifeng Chen, Yange Zhang, Yichun Xu, Xiang-Yan Li, Xuebang Wu, C.S. Liu   +10 more
doaj   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source