【摘要】：研究了退火過程的露點(diǎn)溫度對C-Si-Mn體系高強(qiáng)鋼表面選擇性氧化行為的影響規(guī)律。退火實(shí)驗(yàn)在帶有露點(diǎn)控制器的熱浸鍍工藝模擬器上進(jìn)行,采用掃描電鏡和能譜儀表征退火后的樣品表面特征,使用輝光放電光譜儀表征合金元素的深度分布。結(jié)果表明,隨著硅含量從0.2 mass%增加到1.2 mass%,大量復(fù)合氧化物覆蓋了樣品外表面。隨著退火過程露點(diǎn)溫度從-50℃增加到-30℃,Mn元素傾向于向外表面富集。進(jìn)一步將露點(diǎn)溫度從-30℃提高到-10℃后,樣品表面富集的Mn和Si反而減少。
[Abstract]:The effect of dew point temperature during annealing on the surface selective oxidation behavior of high strength steel C-Si-Mn was studied. The annealing experiment was carried out on a hot dip plating simulator with dew point controller. SEM and EDS were used to characterize the surface characteristics of annealed samples, and glow discharge spectrometers were used to characterize the depth distribution of alloying elements. The results show that with the increase of silicon content from 0.2 mass% to 1.2 mass%, a large number of composite oxides cover the outer surface of the sample. With the increase of dew point temperature from-50 鈩，

本文編號：2440505