本文選題：TWIP鋼 + 退火��； 參考：《工程科學(xué)學(xué)報(bào)》2017年06期

【摘要】：對(duì)Fe-24Mn-3Si-3Al TWIP鋼在不同退火工藝下進(jìn)行力學(xué)性能測(cè)試,采用掃描電子顯微鏡(SEM)、能譜儀(EDS)和透射電子顯微鏡(TEM)觀(guān)察鋼的微觀(guān)組織形貌.結(jié)果表明:隨著退火溫度和保溫時(shí)間的變化,TWIP鋼的力學(xué)性能并不符合常規(guī)的單調(diào)上升或下降的規(guī)律,而在退火溫度為800℃、保溫10 min和退火溫度為900℃、保溫20 min時(shí)發(fā)生波動(dòng).退火溫度為800℃、保溫10 min條件下,鋼的主要強(qiáng)化機(jī)制為析出強(qiáng)化,析出相(Fe,Mn)_(23)C_6的增多導(dǎo)致屈服和抗拉強(qiáng)度升高;退火溫度為900℃、保溫20 min條件下,鋼中的析出相并未有明顯的變化,而二次孿晶的產(chǎn)生及孿晶相互交割成為抗拉強(qiáng)度增加的主導(dǎo)因素.
[Abstract]:The mechanical properties of Fe-24Mn-3Si-3Al TWIP steel were tested under different annealing conditions. The microstructure and morphology of Fe-24Mn-3Si-3Al TWIP steel were observed by scanning electron microscope (SEM), energy spectrometer (EDS) and transmission electron microscope (TEM). The results show that the mechanical properties of TWIP steel do not accord with the rule of monotone rise or decrease with the change of annealing temperature and holding time, but fluctuate when the annealing temperature is 800 鈩，

本文編號(hào)：1778735