贝氏体球墨铸铁应变时结构转变的穆斯堡尔谱研究  

A MOSSBAUER SPECTROSCOPY STUDY OF THESTRUCTURAL PHASE TRANSITION OF BAINITICSPHEROIDAL GRAPHITE CAST IRON AFTER STRAIN

作　　者：邹吕凡[1] 姚凯伦[2] 周孙选 孙尧卿[2] 谢中维[2] 

机构地区：[1]华东交通大学 [2]华中理工大学

出　　处：《应用科学学报》1989年第3期255-259,共5页Journal of Applied Sciences

摘　　要：本文测定和分析了奥-贝球铁的穆斯堡尔谱.结果表明,在应变过程中,残留奥氏体向贝氏体转变;应变量越大,转变量越多;残留奥氏体量的减少值与贝氏体量的增加值相等.对最大应变量为9.8%的奥-贝球铁,残留奥氏体量的减少值为6%左右.结果还表明,奥-贝球铁中可能存在两种贝氏体结构.The structural phase transition of the bainitic spheroidal graphite cast iron is studied by Mossbauer spectroseopy. We find that the structural phase transition occurs after the applied srain, that the more the strain, the more the transition of ehe retained austenite, and that the amount of decrease of the retained austenite is tqual to the amount of increase of bainite, which is about 6% for the strain of 9.8 %. It seems that there exist two bainitic structures for the bainitic spheroidalgraphite oast iron.

关 键 词：球墨铸铁 结构 转变 穆斯堡尔谱 

分 类 号：TG143.5[一般工业技术—材料科学与工程]