The tensile properties and fracture beha viors of Ti-22Al-27Nb and Ti-22Al-20Nb-7Ta alloys were investigated in the temperature range of 25~800 ℃. Three typical
The isothermal sections of the Nb-Ti-Si ternary system at 1473K and 1373K were determined by means of diffusion triple technique and electron microprobe analysi
Selective extraction of zinc from sulfate leach solution of zinc ore was studied.D2EHPA dissolved in260# kerosene was used as extractant.The pH-extraction isoth