摘要
研究了退火工艺对超深冲Ｎｂ＋Ｔｉ－ＩＦ钢性能的影响。结果表明，退火不充分时，钢的ｒ值较低，只有连续退火且退火充分时才能发挥Ｎｂ＋Ｔｉ－ＩＦ钢优异的深冲性能。提高均热温度和均热时间都使ｒ值增加，其中温度的影响更为显著。
The effect of annealing in Nb+Ti-IF steel on properties was investigated.The experimental results showed that annealing condition had strong influence on the r value of Nb+Ti-IF steel.r value increased with the increase of annealing temperature.Continuous annealing had better advantage than box annealing.The large grain size of annealed sheets improved r value and elongation effectively.
关键词
无间隙原子钢
连续退火
罩式退火
深冲性能
IF steel, continuous annealing, box annealing, mechanical properties
