| 冲击功对ZGMn13钢在腐蚀环境下冲击磨损的影响 |
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| 引用本文： | 杜晓东,丁厚福,崔方明.冲击功对ZGMn13钢在腐蚀环境下冲击磨损的影响[J].农业机械学报,2006,37(11):143-147. |
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| 作者姓名： | 杜晓东 丁厚福 崔方明 |
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| 作者单位： | 1. 合肥工业大学材料科学与工程学院,230009,合肥市
2. 浙江大学材料与化学工程学院,310027,杭州市 |
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| 基金项目： | 教育部高等学校博士学科点专项科研基金;安徽省教育厅自然科学基金 |
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| 摘 要： | 针对不同冲击功对ZGMn13钢在腐蚀环境中冲击磨损机理的研究表明:冲击功由2.0J增至3.5J,合金冲击腐蚀磨损失效的主导机制由挤出棱沿根断裂及轻微浅层剥落和腐蚀磨损,向浅层的疲劳剥落和严重腐蚀磨损及深层加工硬化导致的硬化层大块剥落和严重腐蚀磨损转变;剥落裂纹由起源于亚表层显微孔洞、高密度位错区或表面腐蚀坑底部,转为起源于亚表层深处的晶体缺陷处。
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| 关 键 词： | 腐蚀磨损 磨损机理 ZGMn13钢 冲击磨损 |
| 修稿时间： | 2005年5月23日 |
Effect of Impact Work on Impact Corrosion-abrasion Mechanism of ZGMn13 Cast Steel |
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| Du Xiaodong,Ding Houfu,Cui Fangming.Effect of Impact Work on Impact Corrosion-abrasion Mechanism of ZGMn13 Cast Steel[J].Transactions of the Chinese Society of Agricultural Machinery,2006,37(11):143-147. |
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| Authors: | Du Xiaodong Ding Houfu Cui Fangming |
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| Institution: | 1.Hefei University of Technology 2. Zhejiang University |
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| Abstract: | The effect of impact work value on the impact corrosion-abrasion mechanism of ZGMn13 cast steel was investigated. The values of impact work were 2.0 J, 2.7 J, 3.5 J respectively. The results show that the wear resistance of ZGMn13 cast steel decreases with the increase of impact work. The leading abrasion mechanism changes from fracture of extrusion rig along root and superficial spalling, whose cracks originate at the micropore or high density dislocation area in subsurface layer or in the bottom of pits on wear surface, accompaning with corrosion-abrasion, to superficial fatigue flake and heavy corrosion-abrasion. Then it changes to massive flake of hardened layer produced by deep work-hardening and heavy corrosion-abrasion. In this case, cracks originate from crystal defect area in subsurface layer far from surface. |
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| Keywords: | Corrosion-abrasion Abrasion mechanism ZGMn13 cast steel Impact wear |
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