本文選題：GH合金 + 冷變形��； 參考：《材料熱處理學(xué)報(bào)》2017年02期

【摘要】：通過室溫壓縮試驗(yàn)、數(shù)學(xué)模型擬合、金相分析以及洛氏硬度計(jì)等手段,研究了冷變形GH3625合金管材中間退火過程中的組織演變規(guī)律,并建立了中間退火過程中再結(jié)晶晶粒長(zhǎng)大方程。研究表明:隨著冷變形量的增加,合金組織均勻性逐漸變好,硬度值顯著增加,特別是冷變形量0~50%的階段更為明顯;隨著退火溫度的升高,晶粒長(zhǎng)大速率加快;GH3625合金管材在1120℃/15 min/AC下進(jìn)行退火處理,組織為均勻細(xì)小的完全再結(jié)晶晶粒,是適宜的中間退火工藝;所建立的晶粒長(zhǎng)大模型預(yù)測(cè)結(jié)果與實(shí)測(cè)值吻合較好。
[Abstract]:By means of room temperature compression test, mathematical model fitting, metallographic analysis and Rockwell hardness tester, the microstructure evolution during intermediate annealing of cold-deformed GH3625 alloy pipe was studied. The equation of recrystallization grain growth during intermediate annealing was established. The results show that with the increase of cold deformation amount, the microstructure homogeneity of the alloy becomes better and the hardness value increases significantly, especially at the stage of 0 ~ 50% cold deformation, and with the increase of annealing temperature, The grain growth rate is accelerated and annealed at 1120 鈩，

本文編號(hào)：1992557