The nitride layer was formed on the surface of ductile cast iron by gas multi-element penetration, and the phase structure and section appearance of nitride layer were analyzed by the XRD and SEM.
球墨铸铁经过气体多元共渗后可在其表面形成氮化层，通过X射线衍射和扫描电镜对渗层的相结构与形貌进行分析。
The volume variation of ductile iron occurring in eutectic solidification was ascertained by calculating the specific volume of each component phase of the iron.
用计算各组成相比容的办法计算了球墨铸铁共晶转变时的体积变化。
The late ductile shearing(DF_2) formed in D_3 deformation phase is accompanied by the appearance of chlorite and barroisite etc. and dynamic recrystallization of albite, quartz and calcite.
晚期韧性剪切变形与区域D_3变形幕有关，伴随有绿泥石、冻蓝闪石等的出现和石英、方解石的动态重结晶作用。
The mechanism of ductile-brittle transition was considered as the result of the transition of stress as determined by the second phase particle to that as determined by the ferrite grain.
当裂尖出现纤维裂纹后，韧脆转变机理是：由二相粒子决定的解理断裂应力转变成由晶粒尺寸决定的解理断裂应力。同缺口试样具有相同的临界事件。
The fracture was mainly caused by the tearing of copper phase, showing a feature of ductile fracture.
断裂主要是通过铜相的撕裂，显示出塑性断裂的特微。
The phase transition process of isothermally quenched ductile iron was investigated, the author's opi...
研究了等温淬火球铁的相变过程，指出了对等温淬火球铁组织命名的看法。
The phase transition process of isothermally quenched ductile iron was investigated, the author's opi...
研究了等温淬火球铁的相变过程，指出了对等温淬火球铁组织命名的看法。
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