Results 31 to 40 of about 1,054 (210)

Compressive Behavior for Surface-Nanocrystallized Al-Alloy Material [PDF]

MRS Proceedings, 2002
ABSTRACTMechanical behavior of the surface-nanocrystallized material fabricated by the ultrasonic shot peening method is investigated experimentally and theoretically. In the experimental research, based on microscopic observations, the compressive specimens are designed and machined considering the material features, and the compressive experiments ...
Yueguang Wei, Chen Zhu, Xiaolei Wu
openaire   +1 more source

Enhanced initial biodegradation resistance of the biomedical Mg-Cu alloy by surface nanomodification

Journal of Magnesium and Alloys, 2023
Mg-Cu alloys are promising antibacterial implant materials. However, their clinical applications have been impeded by their high initial biodegradation rate, which can be alleviated using nanotechnology by for example surface nanomodification to obtain a
Wen Zhang, Ming-Chun Zhao, Zhenbo Wang, Lili Tan, Yingwei Qi, Deng-Feng Yin, Ke Yang, Andrej Atrens   +7 more
doaj   +1 more source

Effect of surface nanocrystallization on corrosion behaviour of coated steel in chloride solution

International Journal of Electrochemical Science, 2018
A nanocrystalline (NC) layer was fabricated on the surface of the low-alloy steel 15CrMo using high-energy shot peening. Two kinds of conversion coatings including the chemical conversion coating and electrochemical conversion coating were separately ...
Liuyan Zhang, Shuimei Yang, Huishu Wu, Xiaohua Jie, Xiaoye Huang, Xiujin Wang   +5 more
doaj   +1 more source

Surface structure and catalytic activity of amorphous metallic alloys Fe-Nb-B-RE (RE = Y, Gd, Tb, Dy) in alkaline solution

Adsorption Science & Technology, 2017
The thermal stability and characteristics of the surface of the Fe 82 Nb 2 B 14 RE 2 (RE = Y, Gd, Tb, Dy) amorphous alloys were studied by differential scanning calorimetry and atomic force microscopy methods.
L Boichyshyn, M-O Danyliak, B Kotur
doaj   +1 more source

Understanding the microstructure refinement and mechanical strengthening of dual-phase high entropy alloy during ultrasonic shot peening

Materials & Design, 2023
The ultrastrong gradient nanostructured dual-phase high entropy alloy (DP-HEA) Fe50Mn30Co10Cr10 has been fabricated by an efficient surface nanocrystallization method, e.g. ultrasonic shot peeing (USP) at room temperature.
Fei Yin, Xudong Zhang, Fei Chen, Shan Hu, Kaisheng Ming, Jiahao Zhao, Lechun Xie, Yanxiong Liu, Lin Hua, Jian Wang   +9 more
doaj   +1 more source

Influence of surface nanocrystallization on running-in and wearing properties of medium carbon steel

, 2008
In order to study how running-in affects surface nanocrystallization of medium carbon steel, running-in and wearing tests were conducted, while under lubrication, using a ring-on-disc tester.
Wang, H.-Z., Zhang, M.-X., Li, G.-B., Guan, D.-L.   +3 more
core   +1 more source

Effect of surface nanocrystallization on microstructure, mechanical property and corrosion resistance of Mg and its alloys: A perspective review

Journal of Magnesium and Alloys
Magnesium (Mg) and its alloys, as the lowest density metallic structural alloys, have been widely employed across various industries, including electronic communication, automotive, aircraft, defense, and military.
Jie Liang, Ziyong Hou, Revathy Prasath Babu, Xin Xu, Kezhao Liu, Xiaoxu Huang   +5 more
doaj   +1 more source

Nanocrystallized Surface Effect on the Tribocorrosion Behavior of AISI 420

Lubricants, 2022
Nanopeening treatment was applied to the AISI 420 steel to decrease its sensitivity to tribocorrosion damage. The microstructural investigation highlighted that the nanopeening treatment led to high plastic deformation and a nanostructured surface layer with a 110 µm depth.
Fatma Ben Saada, Mariem Ben Saada, Khaled Elleuch, Pierre Ponthiaux   +3 more
openaire   +2 more sources

Nitriding of nanocrystalline pure Fe induced by surface mechanical attrition treatment

MATEC Web of Conferences, 2015
Properties of nanocrystalline (nc) materials are different from, and often superior to those of conventional coarse-grained counterparts. Unfortunately, it is still difficult to obtain “ideal” (e.g. full-density, residual stress-free, flaw-free, porosity-
Fu Yuzhu, Tong Weiping, Gong Mengying, Li Haizhi, Chen Liqing   +4 more
doaj   +1 more source

Nanoscopic Observation of Structural Changes After First‐Firing Behavior in W/GeTe/W Ovonic Threshold Switches Using AFM Tip–Based Local Biasing

Small Methods, EarlyView.
A local‐biasing system using AFM induces site‐specific threshold switching in Ge0.17Te0.83 films, enabling direct observation of crystalline/amorphous interface formation. First‐principles calculations reveal that this structural change induces Te 5p‐dominated mid‐gap states and electric field‐enhanced charge redistribution.
Young‐Min Kim, Su‐Bong Lee, Siwon Park, Jong‐Souk Yeo   +3 more
wiley   +1 more source