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。
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 o...
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2006年第11期143-147,共5页
Transactions of the Chinese Society for Agricultural Machinery
基金
高等学校博士学科点专项科研基金资助项目(项目编号:20040359004)
安徽省教育厅自然科学基金资助项目(项目编号:2006285)
