Surface Texturing in Machine Elements − A Critical Discussion for Rolling and Sliding Contacts

Rational design of multi-layered superhydrophobic coating on cotton fabrics for UV shielding, self-cleaning and oil-water separation

The recently increased interest in very high cycle fatigue properties of materials has led to extended use and further development of the ultrasonic fatigue testing technique. Specimens are stimulated to resonance vibrations at ultrasonic frequency, where the high frequency allows collecting lifetime data of up to 1010 cycles and measuring crack propagation rates down to 10−12 m per cycle within reasonable testing times. New capabilities and methods of ultrasonic testing and outstanding results obtained since the year 1999 are reviewed. Ultrasonic tests at load ratios other than R = −1, variable amplitude tests, cyclic torsion tests and methods for in situ observation of fatigue damage are described. Advances in testing at very high temperatures or in corrosive environments and experiments with other than bulk metallic materials are summarized. Fundamental studies with copper and duplex steel became possible and allowed new insights into the process of very high cycle fatigue damage. Higher cyclic strength of mild steels measured at ultrasonic frequency because of plastic strain rate effects are described. High-strength steels and high-alloy steels are less prone to frequency influences. Environmental effects that can lead to prolonged lifetimes in some aluminium alloys and possible frequency effects in titanium and nickel and their alloys are reviewed.

Recent developments in ultrasonic fatigue

Facile construction of robust fluorine-free superhydrophobic TiO2@fabrics with excellent anti-fouling, water-oil separation and UV-protective properties

Gear wear monitoring by modulation signal bispectrum based on motor current signal analysis

Optimization of strength and toughness of railway wheel steel by alloy design

A comparison of the effects of traditional shot peening and micro-shot peening on the scuffing resistance of carburized and quenched gear steel

Wear and friction behavior of austempered ductile iron as railway wheel material

Microstructure and mechanical properties of austempered ductile iron with different strength grades

Fretting wear-induced evolution of surface damage in press-fitted shaft

Liantao Lu

Papers

Optimization of strength and toughness of railway wheel steel by alloy design

A comparison of the effects of traditional shot peening and micro-shot peening on the scuffing resistance of carburized and quenched gear steel

Wear and friction behavior of austempered ductile iron as railway wheel material

Microstructure and mechanical properties of austempered ductile iron with different strength grades

Fretting wear-induced evolution of surface damage in press-fitted shaft