剧烈塑性变形对珠光体钢丝奥氏体转变的影响

doi:10.13228/j.boyuan.issn0449-749x.20150497

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Abstract With the help of metallographic microscope， scanning electron microscope， transmission electron microscope， X-ray diffractometer and synchronous thermal analyzer technique， the effect of cold drawing deformation on the austenitization process of pearlitic wire and its structure was investigated. After the severe plastic deformation of cold drawing process， the pearlitic turned to the fibrous form. The pearlitic lamellae were arranged along the drawing axial direction with severely reduced thickness and the intensity of ferrite <110> fiber texture reached saturation after high strain deformation. During the austenitization process， the cold drawn pearlite transformed into austenite faster than the no deformed pearlite， and the austenite grew along the cold drawing axial direction with higher density. After isothermal transformation treatment， smaller original austenite crystals and pearlite colonies could be obtained from the cold drawn pearlite wire. Furthermore， the ferrite <110> fiber texture was partly inherited to the transformed phase and the morphological feature of arrangement along the layer direction was not inherited.

Key words： pearlitic wire severe plastic deformation austenization isothermal transformation

Received: 07 October 2015 Published: 26 April 2016

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	Articles by authors
	HU Xian-Jun
	ZHOU Li-Chu
	YU Lei
	FANG Feng

Cite this article:

HU Xian-Jun,ZHOU Li-Chu,YU Lei等. Effect of severe plastic deformation on austenitization transformation of pearlitic wire[J]. Iron and Steel, 2016, 51(5): 62-68.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20150497 OR http://www.chinamet.cn/Jweb_gt/EN/Y2016/V51/I5/62

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