Nickel based alloys have been developed as materials offering superior corrosion fatigue. The fatigue performance of IN600, IN601 and C22 was examined in increasing saline solution severity of 3.5% sodium chloride at pH = 6.8. Results of fatigue and corrosion fatigue tests indicate that the fatigue lives of IN600, IN601 and C22 tested in 3.5 % sodium chloride solution (NaCl) are essentially the...

HEAT INDUCED FATIGUE Heat production during dynamic exercise can elevate core temperature rapidly. Thus, it believed that hyperthermia during prolonged exercise in hot environments is an independent cause of exercise fatigue. Nonetheless, the mechanisms underlying hyperthermia-induced fatigue during prolonged, dynamic exercise in the heat is not well understood. Typically, heat induced fatigue ...

Fatigue may originate from peripheral or central causes, thus being “physical” or “cognitive” (mental) in nature. Some authors also put forward the concepts “primary” or “secondary” fatigue (DeLuca, 2005). It may be that the different dimensions of fatigue have different neurobiological and neurophysiological correlates (see also Chaudhuri and Behan, 2000; 2004). The big problem, however, is th...

Fatigue is one of the main factors that cause the collapse of steel bridges. Anti-fatigue design therefore draws close attention all over the world. The design must have a fatigue load model based upon native traffic load conditions. But the Chinese steel bridge design specification does not include any fatigue load model for anti-fatigue design. So it is imperative to develop the model. This p...