本文選題：.CrMo.V鋼 + 高溫流變行為�。� 參考：《鍛壓技術(shù)》2015年01期

【摘要】：在Gleeble-3500熱模擬試驗(yàn)機(jī)上對(duì)2.25Cr1Mo0.25V鋼進(jìn)行等溫壓縮試驗(yàn),得到變形溫度在900~1200℃、應(yīng)變速率在0.001~10 s-1、變形量為60%時(shí)的高溫流動(dòng)應(yīng)力-應(yīng)變曲線。結(jié)合金相實(shí)驗(yàn),研究2.25Cr1Mo0.25V鋼在不同變形條件下微觀組織的演變規(guī)律,建立2.25Cr1Mo0.25V鋼在高溫塑性變形過程中的動(dòng)態(tài)再結(jié)晶數(shù)學(xué)模型。將模型與有限元結(jié)合,對(duì)熱壓縮過程的組織演化進(jìn)行數(shù)值模擬,模擬結(jié)果與試驗(yàn)結(jié)果的相對(duì)誤差小于11%,驗(yàn)證了模型的正確性。
[Abstract]:The isothermal compression test of 2.25Cr1Mo0.25V steel was carried out on a Gleeble-3500 thermal simulator. The stress-strain curves of high temperature flow were obtained when the deformation temperature was 900 鈩，

本文編號(hào)：1823126