The ignition behavior of Ti3Al-based alloy in 220-380 m/s gas flow environment was studied by using friction ignition method. Combined with numerical calculations. the influence of airflow velocity on surface oxygen concentration and oxidation control step was analyzed. and then the influence of airflow velocity on ignition behavior was discussed. https://www.ngetikin.com/mega-super-Men-s-Green-Beer-Button-Down-Shirt-great-price/