铸铁中的枝晶和共晶奥氏体分解产物  

ON THE TRANSFORMATION CONSTITUENIS OF DENDRITIC AND EUTECTIC AUSTENITES IN CAST IRON

作　　者：范志康[1] 甘雨[1] 王贻青[1] 黄惠松[2] 刘金城[2] 

机构地区：[1]陕西机械学院 [2]清华大学

出　　处：《金属学报》1993年第2期A085-A088,共4页Acta Metallurgica Sinica

摘　　要：研究了工业灰铸铁中枝晶状奥氏体和共晶奥氏体在连续冷却过程中的分解特征。在实验条件下,枝晶奥氏体总是倾向于转变为珠光体型产物,而共晶奥氏体则可能分解为铁素体型、珠光体型、贝氏体型、马氏体型产物。Transformation characteristics of the dendritic austenite and eutectic austenite in commercial grey cast iron during continuous cooling have been investigated. Under exper- imental conditions, the dendritic austenite tends always to transform into pearlite structure, while eutectic austenite may transform into ferrite, pearlite of acicular (bainite and martensite) structure.

关 键 词：铸铁 枝晶 共晶 奥氏体 

分 类 号：TG143[一般工业技术—材料科学与工程]