摘要
本文介绍了用CBED法和能谱法同时测量不同颗粒尺寸的Ti,Nb,V析出相的点阵常数和化学成分。CBED法的测量精度可达万分之二。它们分别获得颗粒的点阵常数值,误差小于1%。在测量中发现:在Nb-V钢中浓度比(C_(Nb)/C_V)和点阵常数随着析出颗粒尺寸的减小而递减。但是,在Ti-V-Nb钢中Ti,Nb和V的析出量和点阵常数与析出颗粒尺寸的关系无规律。
The lattice constants and chemical composition of Ti, Nb and V precipitateswith different particle sizes have been measured by means of CBED and EDAX. The precisionof CBED method is up to 0.02%. The error of these two methods is less than 1%. It wasobtained that the concentration ratio of Nb and V, C_(Nb)/C_V, and the lattice constants in theNb-V steel decrease with the decrease of the particle size of the precipitates, but, there is noregularity for lattice constant of Ti, Nb and V precipitate against their particle size in theTi-V-Nb steel.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1989年第6期B430-B432,共3页
Acta Metallurgica Sinica
关键词
碳氮化物
点阵常数
析出相
钢
microalloyed steel
carbonitride
lattice constant
