The phase boundary,of α<sub>2</sub> precipitation at 600℃ in Ti-AI-La ternary system has been de-termined by TEM examination,which shows three kinds of phase
By means of nonstoichiometry,rapid solidification and adequate boron addition,the tensilestrength and bending resistance of Ni<sub>3</sub>Al has been improved.W
The size effect of tension round bars with circumferential crack was described and used tomeasure the plane-strain fracture toughness K<sub>1c</sub> of median o
An experimental study has been made of oxidation kinetics of Ti in molten Cu-Ti alloy underwatery atmosphere at 1500℃.The results may be expressed as follows:[