【摘要】：利用實(shí)驗(yàn)室退火爐對(duì)冷軋低合金高強(qiáng)鋼進(jìn)行連續(xù)退火工藝模擬,研究退火溫度對(duì)其組織與性能的影響,并通過改變鋼中Nb成分的含量,研究化學(xué)成分Nb對(duì)熱軋板性能以及對(duì)退火板性能的影響。結(jié)果表明:在790℃以下,隨著退火溫度的逐漸升高,退火板的屈服強(qiáng)度和抗拉強(qiáng)度顯著降低,伸長(zhǎng)率顯著升高;在790℃以上,隨著退火溫度的逐漸升高,退火板的屈服強(qiáng)度和抗拉強(qiáng)度下降趨勢(shì)較小。增加鋼中Nb的含量能夠顯著提高熱軋板和退火板的強(qiáng)度,增加0.01%的Nb大約能使熱軋板的抗拉強(qiáng)度提高34 MPa,退火板屈服強(qiáng)度提高14 MPa。
[Abstract]:The continuous annealing process of cold rolled low alloy high strength steel was simulated by laboratory annealing furnace. The effect of annealing temperature on the microstructure and properties of the steel was studied, and the content of Nb in the steel was changed. The effects of chemical composition Nb on the properties of hot rolled sheet and annealed plate were studied. The results show that under 790 鈩，

本文編號(hào)：2229492