Effect of martensite volume fraction on deformation dislocation structure and fracture for hot rolled dual-phase steel of the same composition was studied by using SEM and TEM.
利用SEM、TEM研究了同一成分的热轧双相钢的马氏体体积分数对形变位错结构和断口组织特征的影响。
The result of SEM analysis shows that, within the same holding time, with normalizing temperature increasing, the layer-mesostructure is denser and denser.
扫描电镜分析表明：在相同的保温时间内，随正火温度的升高， 片层状珠光体越来越密集。
The existence of closed geodesic lines (oscillate loci) is proved. Although there are infinite closed loci on the surface of scatterer, they yield same result in determining SEM poles.
本文给出了闭合测地线，即振荡轨迹的存在性，证明了这种闭合轨迹虽有无穷多条，但就确定SEM极点来说是等价的。
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