| 引用本文: | 易敏,王国栋,陈涛,王立峰,佟倩.新型低碳贝氏体钢的力学与腐蚀疲劳性能[J].材料科学与工艺,2012,20(6):103-107.DOI:10.11951/j.issn.1005-0299.20120619. |
| YI Min,WANG Guo-dong,CHEN Tao,WANG Li-feng,TONG Qian.Mechanical and corrosion fatigue properties of a new low carbon bainitic steel[J].Materials Science and Technology,2012,20(6):103-107.DOI:10.11951/j.issn.1005-0299.20120619. |
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| 新型低碳贝氏体钢的力学与腐蚀疲劳性能 |
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易敏1,2, 王国栋1, 陈涛2, 王立峰2, 佟倩2
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(1.东北大学 轧制技术及连轧自动化国家重点实验室,沈阳 110004;;2.首钢总公司技术研究院,北京 100043);1.东北大学 轧制技术及连轧自动化国家重点实验室,沈阳 110004;2.首钢总公司技术研究院,北京 100043
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| 摘要: |
| 为研究低碳贝氏体钢在热处理后的力学、腐蚀疲劳性能,采用扫描电子显微镜、透射电镜、X射线衍射分析研究了一种新型贝氏体钢力学性能,并在自来水和盐水腐蚀介质中研究了其腐蚀疲劳性能.结果表明:与轧材比较,A、B、C钢轧材经正火回火热处理后,表现出更优异的综合力学性能和抗腐蚀疲劳性能；而含Si高的A钢具有更优异的韧塑性及抗腐蚀疲劳性能.含Si的贝氏体钢中的贝氏体铁素体(BF)板条间残余奥氏体(Ar)膜对氢致裂纹的扩展速率有突出的抑制作用. |
| 关键词: 低碳贝氏体钢 热处理组织 力学性能 腐蚀疲劳 |
| DOI：10.11951/j.issn.1005-0299.20120619 |
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| 基金项目:国家重点基础研究发展计划资助项目(2011CB605602). |
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| Mechanical and corrosion fatigue properties of a new low carbon bainitic steel |
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YI Min1,2, WANG Guo-dong1, CHEN Tao2, WANG Li-feng2, TONG Qian2
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(1 .The State Key Lab.of Rolling and Automation,Northeastern University,Shenyang 110004,China;;2.The Research Institute of Technology,Shougang Group,Beijing 100043,China);1.The State Key Lab.of Rolling and Automation,Northeastern University,Shenyang 110004,China;2.The Research Institute of Technology,Shougang Group,Beijing 100043,China
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| Abstract: |
| The mechanical properties and corrosion fatigue properties of low carbon bainite steel after heat treatment under water and salt water conditions were investigated by scanning electron microscopy(SEM),transmission electron microscope(TEM) and X-ray diffractometer(XRD)．The results indicated that,compared with as-rolled specimens,A,B,C steel after heat treatment showed more excellent toughness and ductility mechanical properties.Additionally,specimen of A with more silicon content showed superior mechanical properties and corrosion fatigue performance which was attributed to more retained austenite(Ar) between bainite ferrites(BF) reducing the propagation rate of Hydrogen induced crack. |
| Key words: low carbon bainitic steel heat treatment microstructure mechanical properties corrosion fatigue |
