Snap-acting two way shape memory device can be obtained by using the design proposed byauthors.Some essential parameters which characterize the properties of de
The solid solubilities of 15 common alloying elements added to the Ll<sub>2</sub>-type intermetalliccompound Ni<sub>3</sub>Si at 900°C have been estimated,
The thermal cracking and wear mechanism of rail wheel tread have been studied.The resultsshowed that the thermal cracking of rail wheel tread is related to the