| Q235钢表面复合强化处理后的拉伸强度 |
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| 引用本文： | 王建忠,隗晓云,徐晋勇,刘燕萍,高 原,徐 重.Q235钢表面复合强化处理后的拉伸强度[J].中国表面工程,2005,18(6):21-24. |
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| 作者姓名： | 王建忠 隗晓云 徐晋勇 刘燕萍 高 原 徐 重 |
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| 作者单位： | 1. 太原理工大学表面工程研究所,山西,太原,030024
2. 太原理工大学表面工程研究所,山西,太原,030024;桂林电子工业学院,广西,桂林,510014 |
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| 基金项目： | 国家自然科学基金资助项目（50374050）;山西省自然科学基金资助项目（20031050） |
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| 摘 要： | 在Q235钢表面进行等离子渗铬和铬-钼、钨-钼共渗,然后进行等离子超饱和渗碳、淬火及回火处理,获得表面强化层.并对处理后的材料进行了拉伸试验.结果表明：基体的屈服强度和抗拉强度分别为669.48 MPa和696.74MPa,而经过表面复合强化处理后,材料的屈服强度最低为834.53 MPa,最高为1310.17 MPa;抗拉强度最低为957.38MPa,最高为1508.19 MPa.极大地改善了Q235钢的拉伸性能.而且经4 h等离子渗铬及后续热处理后,材料的拉伸强度提高更显著.
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| 关 键 词： | 等离子表面合金化 渗金属 渗碳 拉伸强度 |
| 文章编号： | 1007-9289（2005）06-0021-04 |
| 收稿时间： | 2005-10-14 |
| 修稿时间： | 2005-11-15 |
Tensile Strength of Q235 Steel After Compound Surface Strengthening Treatment |
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| WANG Jian-zhong,KUI Xiao-yun,XU Jin-yong,LIU Yan-ping,GAO Yuan,XU Zhong.Tensile Strength of Q235 Steel After Compound Surface Strengthening Treatment[J].China Surface Engineering,2005,18(6):21-24. |
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| Authors: | WANG Jian-zhong KUI Xiao-yun XU Jin-yong LIU Yan-ping GAO Yuan XU Zhong |
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| Abstract: | Cr, Cr-Mo and W-Mo were permeated into the surface of Q235 steel, and then the surface was strengthened by plasma supersaturated carburizing, quenching and tempering treatments. The tensile experiment was carried out after treatment. The results showed that the yield and tensile strength of the substrate were 669.48 MPa and 696.74 MPa respectively, while the minimum yield strength was 834.53 MPa and maximum was 1301.17 MPa; the minimum tensile strength was 957.38 MPa and maximum was 1508.19 MPa after surface compound treatment. The tensile properties of Q235 steel were greatly enhanced. At the same time the tensile strength of steel was improved more obviously through plasma Cr permeation for 4 h and subsequent heat treatment. |
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| Keywords: | plasma surface alloying metallic cementation carburizing tensile strength |
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