Precipitation Behavior and Texture Formation at Different Stages of Processing in Ti-IF
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摘要: 研究了Ti-IF无间隙原子钢热轧、冷轧、退火(700、800℃)过程的析出行为与织构。该钢在700℃退火过程中形成的FeTiP析出颗粒降低了{111}织构强度,导致r值降低;而800℃退火过程中形成的析出颗粒提高{111}织构强度,强的{111}织构强度增加r值。700℃退火析出物主要为FeTiP,800℃退火析出物主要为Ti4C2S2;由于形成Ti4C2S2析出物,使C在再结晶退火过程中很容易从固溶体中析出而形成{111}织构,促使800℃退火时获得良好的成型性。
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关键词:
- Ti-IF无间隙原子钢 /
- 析出物 /
- 织构 /
- 热轧 /
- 退火
Abstract: The precipitation behavior and texture formation during hot rolling,cold rolling and annealing(at 700 ℃ and 800 ℃) have been studied in a Ti-containing interstitial freesteel.The presence of FeTiP in the 700 ℃ annealed steel and its absence in the 800 ℃ annealed material are considered to be responsible for the poor {111} texture and low r in the former and strong {111} texture and high r in the latter.Annealing at 700 ℃ produces copious FeTiP type precipitates,while after annealing at 800 ℃ Ti4C2S2 precipitates form.Due to the formation of Ti4C2S2,C is easily taken out of the solid solution during recrystallization annealing and this results in better {111} texture formation and thus better formability in the 800 ℃ annealed material.-
Key words:
- Ti-IF interstitial free steel /
- precipitation /
- texture /
- hot rolling /
- annealing
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