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| 合金弹簧钢连铸坯高温力学性能分析 | |
| 引用本文： | 刘青,张建峰,张晓峰,卢新春,谢飞鸣,李红卫,刘孝山,张路莎.合金弹簧钢连铸坯高温力学性能分析[J].重庆大学学报(自然科学版),2013,36(5):44-50. |
| 作者姓名： | 刘青 张建峰 张晓峰 卢新春 谢飞鸣 李红卫 刘孝山 张路莎 |
| 作者单位： | 1. 北京科技大学钢铁冶金新技术国家重点实验室,北京100083;北京科技大学冶金与生态工程学院,北京100083 2. 北京科技大学冶金与生态工程学院,北京100083; 方大特钢科技股份有限公司,南昌330012 3. 方大特钢科技股份有限公司,南昌,330012 |
| 基金项目： | 教育部新世纪优秀人才支持计划资助项目(NECT07-0067)；中央高校基本科研业务费项目(FRF-BR-09-020B)；江西省科技计划项目(2011ZBBH80010) |
| 摘 要： | 为了时合金弹簧钢高温力学性能进行分析,采用Gleeble1500热模拟试验机测试了典型弹簧钢钢种SUP9、50CrVA、60Si2Mn的高温力学性能,绘制了3个钢种在600～1 350℃区间内的抗拉强度和热塑性曲线.应用扫描电镜对试样断口形貌进行观察,分析了3个钢种在不同温度区间的断裂机理,讨论了钢种成分及夹杂物对高温力学性能的影响.研究发现:SUP9、50CrVA、60Si2Mn存在第Ⅰ脆性区(Tm～1 315℃,Tm～1 281℃,Tm～1 316℃)和第Ⅲ脆性区(600～930℃,650～956℃,600～980℃).前者产生的原因是高温下枝晶间有害元素S、P和O富集形成液膜,后者是由于奥氏体晶界出现铁素体薄膜以及细小AlN的析出. |
| 关 键 词： | 弹簧钢 连铸 小方坯 热分析 高温力学性能 |
Analysis on high temperature mechanical properties of alloy spring steel billet |
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| LIU Qing,ZHANG Jianfeng,ZHANG Xiaofeng,LU Xinchun,XIE Feiming,LI Hongwei,LIU Xiaoshan and ZHANG Lusha.Analysis on high temperature mechanical properties of alloy spring steel billet[J].Journal of Chongqing University(Natural Science Edition),2013,36(5):44-50. | |
| Authors: | LIU Qing ZHANG Jianfeng ZHANG Xiaofeng LU Xinchun XIE Feiming LI Hongwei LIU Xiaoshan and ZHANG Lusha |
| Institution: | State Key Laboratory of Advanced Metallurgy; School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;;State Key Laboratory of Advanced Metallurgy; School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;;State Key Laboratory of Advanced Metallurgy; School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;;School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China; Fangda Special Steel Technology Co.,Ltd.,Nanchang 330012,China;Fangda Special Steel Technology Co.,Ltd.,Nanchang 330012,China;Fangda Special Steel Technology Co.,Ltd.,Nanchang 330012,China;1State Key Laboratory of Advanced Metallurgy; School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;;1State Key Laboratory of Advanced Metallurgy; School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China; |
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