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贝氏体相变中栏框形成的动态观察及其形成机制的探讨

王英姝 , 孙福玉 , 徐温崇

金属学报

利用HM-100型高温金相显微镜,对12Cr2MoWVTiB钢进行了γ→β相变的动态观察。研究了贝氏体栏框的铁素体针顺次生长规律。根据晶体学分析,提出了一个有关贝氏体栏框形成的多滑移转换模型。

关键词: γ→β相变 , steel 12Cr2MoWVTiB , ferritic needles , basket

IN SITU OBSERVATION ON FORMATION OF BASKET DURING BAINITIC TRANSFORMATION

WANG Yingshu SUN Fuyu XU Wenchong Central Iron and Steel Research Institute , Ministry of Metallurgical Industry , Beijing , China Senior Engineer , Department No.13 , Central Iron and Steel Research Institute , Ministry of Metallurgical Industry , Beijing , China

金属学报(英文版)

By means of riM-190 hot-stage microscopy,the in situ observation of α-β transformation in 12Cr2MoWVTiB steel has been carried out.The sequence of the growth of ferritic needles composing bainitic basket has also been determined.According to the crystallographic analy- sis a multislip system transform model concerning the formation of basket has been proposed.

关键词: α-β transformation , null , null , null

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