Results 31 to 40 of about 705 (160)
Nanocrystallization in the Duplex Ti-6Al-4V Alloy Processed by Multiple Laser Shock Peening
Metals, 2016 Laser shock peening of titanium alloys has been widely applied in the aerospace industry. However, little is known of the nanocrystalline formation characteristics and mechanisms. In this investigation, a nanocrystalline layer was formed in the duplex Ti-
Wangfan Zhou +4 more
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The mechanism of surface nanocrystallization during plasma nitriding
Applied Surface Science, 2019 Abstract Motivated by the observation of in-situ nanocrystallization in the surface layer of plasma nitrided steels, this work is carried out to establish a thermodynamic model that describes the Gibbs free energy of BCC-Fe solution using the quasi-binary solution model.
J.W. Yao +5 more
openaire +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 +3 more
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Chemical Engineering Transactions, 2017 The nanocrystallization of the surface of industrial Zr-4 alloy is realized by means of the mechanical lapping technology. XRD diffractometer and transmission electron microscopy are applied to analyze the grain size, the micro-hardness and the micro ...
Mengxiong Lu, Qingze Zou
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Journal of the Japan Society of Powder and Powder Metallurgy, 2003 The mechanism of nanocrystallization in steels by ball milling was studied. The importance of severe plastic deformation at high strain rate rather than repeated cold-welding was recognized. This idea was confirmed by the nanocrystallization in other deformation methods such as a ball drop, a particle impact and shot peening deformations those can ...
Umemoto, Minoru +2 more
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SensorsFe-based amorphous microwires were studied to examine the effect of partial surface nanocrystallization on their magnetic and electrical properties. Controlled annealing was used to induce nanocrystallization within the surface layer of the metallic core.
Oleg Aksenov +2 more
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Journal of Materials Research and Technology, 2022 In this work, the formation mechanism of surface nano-grains was explored for a 316L stainless steel processed by a rotationally accelerated shot peening (RASP).
Jiansheng Li +9 more
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Surface Characteristics and Fatigue Behavior of Gradient Nano-Structured Magnesium Alloy
Metals, 2017 High-frequency impacting and rolling was applied on AZ31B magnesium alloy to obtain a gradient nano-structured surface. Surface characteristics were experimentally investigated, and the nanocrystallization mechanism is discussed in detail. Results showed
Xiaohui Zhao, Yanjun Zhang, Yu Liu
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Influence of shot peening on corrosion behavior of low alloy steel
Materials Research Express, 2020 Surface modification is an important technique for maintaining relatively favorable mechanical properties to surface properties and corrosion resistance.
Mingliang Qiao +3 more
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Microstructure, thermal stability and corrosion behavior of ultrasonic shot peened AA7034
Corrosion Communications, 2023 Microstructure, thermal stability at room temperature and corrosion behavior of ultrasonic shot peened AA7034 were investigated in this work. Microstructure modification induced by ultrasonic shot peening was obtained by using OM, SEM, EBSD and XRD, and ...
Hao Liu +5 more
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