| 室温等径角挤压后共析珠光体钢的组织特性 |
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| 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 |
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| 作者姓名： | 赵军 王宝忠 王振华 赵德利 傅万堂 |
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| 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 |
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| 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。
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| 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 |
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| 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 |
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| Authors: | Zhao Jun Wang Bao-zhong Wang Zhen-hua Zhao De-li Fu Wan-tang |
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| Affiliation: | State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering,Yanshan University, Qinhuangdao 066004 |
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| 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. |
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| Keywords: | Eutectoid Pearlitic Steel Equal Channel Angular Pressing Cementite |
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