Abstract:Various impact toughnesses of TA5 titanium alloy plate at ambient temperature, their relationships each other and the effects of rolling process factors on the relationships are studied. The results show that aKV and aK (transverse) have agood linear relations with aK and aK(vertical) under certain conditions, respectively. AK||l has more sellsitivity to notch. Thelower rolling temperature and the more deformation. the more obivious the texture and the lower the ratioes of aKll / aK andaKV / aKU. The values of aK and aKV / aKU can be improved by means of arranging rolling process suitably.