Results 31 to 40 of about 10,094 (256)

Fatigue Strength of Weathering Steel

Medžiagotyra, 2012
Fatigue behaviour of Atmofix 52 steel (comparable to COR-TENâ steel) exposed to atmospheric corrosion for 20 years was investigated. S-N curves for load symmetrical cycling and cycling with stress ratio R = 0 were determined on specimens detracted from a
Ludvík KUNZ, Petr LUKÁŠ, Jan KLUSÁK
doaj   +1 more source

Studying the Passivity and Breakdown of Duplex Stainless Steels at Micrometer and Nanometer Scales – The Influence of Microstructure

Frontiers in Materials, 2020
Duplex stainless steels (DSSs) consist of ferrite and austenite phases with approximately equal volume fraction. They exhibit combined superior mechanical strength and corrosion resistance, therefore are increasingly used in various applications. However,
Jinshan Pan
doaj   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Durability method on corrosion fatigue performance of AH 32 steel

Fracture and Structural Integrity, 2019
A durability method in view of cathodic protection is proposed to improve the corrosion fatigue resistance of AH 32 steel in seawater. By aid of corrosion fatigue tests, the effects of thermal spraying Zn (zinc) and Cr (chromium) coating corrosion ...
Xiao-guang Huang, Zhi-qiang Wang
doaj   +3 more sources

Role of MnS in the intergranular corrosion and depassivation of sensitized Type 304 stainless steel

npj Materials Degradation
During polarization in 1 M NaCl (pH 5.4), intergranular corrosion of sensitized re-sulfurized Type 304 stainless steel occurred after pit initiation at MnS inclusions.
Noriyuki Ida, Masashi Nishimoto, Izumi Muto, Yu Sugawara   +3 more
doaj   +1 more source

The Initiation Characteristics of Corrosion Fatigue Crack in 18Ni (250) Steel

Journal of Marine Science and Engineering
Maraging steel is the material of deep sea pressure equipment. The characteristics of corrosion fatigue crack initiation in 18Ni (250) were investigated by performing a tensile fatigue test under different loading conditions.
Hongzhang Pan, Yongmei Zhu, Mingjiang Fang   +2 more
doaj   +1 more source

Corrosion Risk of Reinforced Concrete Structure Arising from Internal and External Chloride

Advances in Materials Science and Engineering, 2018
The corrosion risk of internal chloride and external chloride from three different exposure conditions was evaluated. The initiation of corrosion was detected by monitoring the galvanic current between cathode metal and embedded steel.
M. J. Kim, K. Y. Ann
doaj   +1 more source

Direct evidence of initial pitting corrosion

Electrochemistry Communications, 2008
Abstract The chloride ion (Cl − ) is known as an aggressive species in the aqueous solutions that adsorbs to the imperfect sites on the metal surfaces, such as defects, impurities and second-phase particles. This adsorption process could change the chemical composition and properties, such as ion conductivity, of the passive film.
Wang, M, Li, X, Du, N, Huang, Y, Korsunsky, A   +4 more
openaire   +3 more sources

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Corrosion Process of Ductile Iron with Cement Mortar Linings as Coatings in Reclaimed Water

International Journal of Electrochemical Science, 2016
Corrosion of ductile iron with cement mortar linings (CML) exposed to reclaimed water within one year was monitored by electrochemical impedance spectroscopy (EIS), potentio-dynamic polarization (PDP), scanning electron microscopy (SEM) and energy ...
Yarong Song, Yimei Tian, Xin Zhao, Hao Guo, Haiya Zhang   +4 more
doaj   +1 more source