scholarly journals Effect of C content on the surface gradient structure of (Ti, Mo)(C, N) and Ti(C, N)-based cermets

2021 ◽  
Author(s):  
Jian Lv ◽  
Yong Du ◽  
Yingbiao Peng ◽  
Cong Zhang ◽  
Jianzhan Long ◽  
...  
Keyword(s):  
Gradient Structure ◽  
Surface Gradient

Control of magnesium in vitro degradation based on ultrafine-grained surface gradient structure using ultrasonic nanocrystalline surface modification

Materialia ◽  
2020 ◽  
Vol 12 ◽  
pp. 100821 ◽  
Author(s):  
Seung Mi Baek ◽  
Il Yong Choi ◽  
Ji Hyun Moon ◽  
Umarov Rakhmatjon ◽  
Jae H. Kim ◽  
...  
Keyword(s):  
Surface Modification ◽  
Gradient Structure ◽  
In Vitro Degradation ◽  
Surface Gradient ◽  
Ultrafine Grained

scholarly journals Low Cycle Fatigue behavior of AA7075 with surface gradient structure produced by Ultrasonic Shot Peening

2016 ◽  
Vol 2 ◽  
pp. 3288-3295 ◽  
Author(s):  
Vaibhav Pandey ◽  
K. Chattopadhyay ◽  
N.C. Santhi Srinivas ◽  
Vakil Singh
Keyword(s):  
Shot Peening ◽  
Low Cycle Fatigue ◽  
Fatigue Behavior ◽  
Gradient Structure ◽  
Cycle Fatigue ◽  
Surface Gradient ◽  
Ultrasonic Shot Peening

Surface gradient structure-phase states formation under differentiated quenching of 100 meter rails

2014 ◽  
Vol 8 (6) ◽  
pp. 1345-1350 ◽  
Author(s):  
K. V. Volkov ◽  
V. E. Gromov ◽  
K. V. Morozov ◽  
Yu. F. Ivanov ◽  
D. A. Romanov ◽  
...  
Keyword(s):  
Gradient Structure ◽  
Surface Gradient ◽  
Structure Phase

scholarly journals INFLUENCE OF SULFUR FREE BIS-HELATE OF MOLYBDENUM ON CREATION OF FRICTION STEEL SURFACE GRADIENT STRUCTURE

2014 ◽  
Vol 0 (4(65)) ◽  
Author(s):  
Міщук Олександрович Олег ◽  
Олександр Васильович Телемко ◽  
Валерій Іванович Дзюба ◽  
Людмила Іванівна Коваль ◽  
Василь Іванович Пехньо
Keyword(s):  
Steel Surface ◽  
Gradient Structure ◽  
Surface Gradient

scholarly journals Corrosion Behavior and Osteogenic Activity of a Biodegradable Orthopedic Implant Mg–Si Alloy with a Gradient Structure

Metals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 781
Author(s):  
Weiyan Jiang ◽  
Wenzhou Yu
Keyword(s):  
Corrosion Resistance ◽  
Corrosion Behavior ◽  
Polarization Resistance ◽  
Corrosion Current Density ◽  
Corrosion Current ◽  
Gradient Structure ◽  
Orthopedic Implant ◽  
Biological Functions ◽  
Alloy Matrix ◽  
Osteogenic Activity

A gradient Mg-8 wt % Si alloy, which was composed of the agglomerated Mg2Si crystals coating (GMS8-1) and the eutectic Mg–Si alloy matrix (GMS8-2), was designed for biodegradable orthopedic implant materials. The bio-corrosion behavior was evaluated by the electrochemical measurements and the immersion tests. The results show that a significant improvement of bio-corrosion resistance was achieved by using the gradient Mg–Si alloy, as compared with the traditional Mg-8 wt % Si alloy (MS8), which should be attributed to the compact and insoluble Mg2Si phase distributed on the surface of the material. Especially, GMS8-1 exhibits the highest polarization resistance of 1610 Ω, the lowest corrosion current density of 1.7 × 10−6 A.cm−2, and the slowest corrosion rate of 0.10 mm/year. In addition, GMS8-1 and GMS8-2 show better osteogenic activity than MS8, with no cytotoxicity to MC3T3-E1 cells. This work provides a new way to design a gradient biodegradable Mg alloys with some certain biological functions.

Broadband electromagnetic absorbing performance by constructing alternate gradient structure(AGS) for PMMA-based foams

2021 ◽  
pp. 106557
Author(s):  
Danfeng Zhou ◽  
Huan Yuan ◽  
Zirui Yu ◽  
Wei Guo ◽  
Yuanlu Xiong ◽  
...  
Keyword(s):  
Gradient Structure
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