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室温等径角挤压后共析珠光体钢的组织特性
引用本文:赵军,王宝忠,王振华,赵德利,傅万堂. 室温等径角挤压后共析珠光体钢的组织特性[J]. 特殊钢, 2007, 28(6): 18-20
作者姓名:赵军  王宝忠  王振华  赵德利  傅万堂
作者单位:亚稳材料制备技术与科学国家重点实验室,燕山大学材料科学与工程学院,秦皇岛066004
摘    要:用扫描电镜(SEM)、透射电镜(TEM)和X-射线衍射(XRD)方法研究了0.78C-1.03Cr共析珠光体钢Φ8mm×45mm试样两道次室温等径角挤压后所产生的显微组织变化。结果表明,一道次等径角挤压变形后,共析珠光体组织,由渗碳体不规则弯曲片层、直接剪断片层和局部变薄层组成。随变形道次增加,发生局部变薄与不规则弯曲珠光体片层比例加大,并且还引起渗碳体的部分溶解。

关 键 词:共析珠光体钢  等径角挤压  渗碳体  
收稿时间:2007-05-28
修稿时间:2007-05-28

Feature of Structure of Eutectoid Pearlitic Steel After Equal Channel Angular Pressing at Ambient Temperature
Zhao Jun,Wang Bao-zhong,Wang Zhen-hua,Zhao De-li,Fu Wan-tang. Feature of Structure of Eutectoid Pearlitic Steel After Equal Channel Angular Pressing at Ambient Temperature[J]. Special Steel, 2007, 28(6): 18-20
Authors:Zhao Jun  Wang Bao-zhong  Wang Zhen-hua  Zhao De-li  Fu Wan-tang
Affiliation:State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering,Yanshan University, Qinhuangdao 066004
Abstract:The evolution of structure of 0. 78C-1. 03Cr eutectoid pearlitic steel Φ8 mm x 45 mm sample with two pass equal channel angular pressing at ambient temperature has been studied by scanning, transmission electron microscope and X- ray diffraction method. Results showed that after one pass equal channel angular pressing, the deformed eutectoid pearlitic structure consisted of cementite irregularly bent lamellae t sheared breaking lamellae and locally thinned lamellae. With pass number increasing the proportion of locally thinned lamellae and irregularly bent lamellae increased, and partial cementite dissolved.
Keywords:Eutectoid Pearlitic Steel   Equal Channel Angular Pressing   Cementite
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