Ma, Heng Tian, Huiyun Xin, Juncheng Cui, Zhongyu
Published in
Materials
Electrochemical H charging, hydrogen permeation, and hydrogen-induced cracking (HIC) behavior of 690 MPa grade steel substrate and different heat-treatment states (annealed, quenched, normalized, tempered) are investigated by cyclic voltammetry (CV), hydrogen permeation, electrochemical H charging, and slow strain rate tensile test (SSRT). The resu...
Mrózek, Mariusz Schabikowski, Mateusz Mitura-Nowak, Marzena Lekki, Janusz Marszałek, Marta Wojciechowski, Adam M. Gawlik, Wojciech
Published in
Materials
We present an experimental study of the longitudinal and transverse relaxation of ensembles of negatively charged nitrogen-vacancy (NV − ) centers in a diamond monocrystal prepared by 1.8 MeV proton implantation. The focused proton beam was used to introduce vacancies at a 20 µ m depth layer. Applied doses were in the range of 1.5 × 10 13 to 1.5 × ...
Lv, Hao Li, Zhijie Li, Xudong Yang, Kun Li, Fei Xie, Hualong
Published in
Materials
Porosity is one of the most common defects in the laser cladding of Inconel 718 (IN718) alloy, which can reduce the strength and fatigue performance of the components. However, the dynamic formation of microporosity is challenging to observe through experiments directly. In order to explore the formation mechanism of porosities and dynamically repr...
Vladoiu, Rodica
Published in
Materials
Guo, Huan Xia, Kai Cao, Mingzhao Zhang, Xiaodong
Published in
Materials
In this study, the cationic polymer poly-epichlorohydrin-dimethylamine was immobilized on natural attapulgite to improve the dye adsorption capacities. Fourier transform infrared spectroscopy (FTIR), X-ray diffraction, nitrogen adsorption-desorption isotherms, scanning electron microscope (SEM) analysis, zeta potential analysis, and particle size a...
Ye, Jyun-Yan Peng, Kuo-Fu Zhang, Yu-Ning Huang, Szu-Yuan Liang, Mong
Published in
Materials
A series of N- substituted polyether- block -amide (PEBA-X%) copolymers were prepared by melt polycondensation of nylon-6 prepolymer and polytetramethylene ether glycol at an elevated temperature using titanium isopropoxide as a catalyst. The structure, thermal properties, and crystallinity of PEBA-X% were investigated using nuclear magnetic resona...
Hashim, Aimi Noorliyana Salleh, Mohd Arif Anuar Mohd Sandu, Andrei Victor Ramli, Muhammad Mahyiddin Yee, Khor Chu Mohd Mokhtar, Noor Zaimah Chaiprapa, Jitrin
Published in
Materials
The evolution of internal compressive stress from the intermetallic compound (IMC) Cu6Sn5 growth is commonly acknowledged as the key inducement initiating the nucleation and growth of tin (Sn) whisker. This study investigates the effect of Sn-0.7Cu-0.05Ni on the nucleation and growth of Sn whisker under continuous mechanical stress induced. The Sn-...
Huang, Xiang Zhou, Wei Deng, Daxiang
Published in
Materials
The understanding of the correlation between a pore-scale structure and its coupled diffusion transport property is crucial in the virtual design and performance optimization of porous fibrous material for various energy applications. Two most common and widely employed pore-scale modeling techniques are the lattice Boltzmann method (LBM) and the p...
Shu, Yuanjie Ke, Liaoliang Su, Jie Shen, Fei
Published in
Materials
This paper discusses an in-depth experimental study on the fretting wear behavior of PVDF (polyvinylidene fluoride) piezoelectric thin film against a Si3N4 ceramic sphere under air conditions. A fretting wear device with a ball-on-plate contact configuration was applied. The changes of displacement amplitude, normal force, and applied voltage were ...
Yu, Jiangping Wang, Donghong Chen, Jingyang Yang, Changlin Hao, Xin Zhou, Jianxin Li, Dayong Shu, Da Xiao, Chengbo Peng, Yinghong
...
Published in
Materials
The hot deformation behaviors of the SJTU-1 alloy, the high-throughput scanned casting Nickel-based superalloy, was investigated by compression test in the temperature range of 900 to 1200 °C and strain rate range of 0.1–0.001 s−1. The hot processing map has been constructed with the instability zone. At the beginning of hot deformation, the flow s...