Effect of V and N on Microstructures and Properties of Grade-70 Tire Cord Steel during Cold Drawing

来源 :Journal of Iron and Steel Research(International) | 被引量 : 0次 | 上传用户:ming9981
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Commercial grade-70 tire cord steel was microalloyed with V and N to explore the possibility of substituting V for C and the effect of V and N on cementite dissolution during cold drawing process.Tensile strength,elongation and torsion laps of cold-drawn wires were determined.Microstructures of secondary phases were studied by transmission electron microscopy(TEM)and energy dispersive spectroscopy(EDS).Saturation magnetization was measured by using a vibrating sample magnetometer(VSM)to evaluate cementite dissolution during cold drawing process.Experimental results showed that with the increase of V content,tensile strength increased,elongation slightly decreased,and the torsion laps of the cold-drawn wires decreased.Results also showed that with the increase of N content,apeak(increasing first and then decreasing)appeared in the tensile strength graph,and an increase of elongation and a decrease of torsion laps of the cold-drawn wires occured.N is soluble in ferrite when its content is low.The increase in the content of N to 82×10-6 will result in the precipitation of the V-containing secondary phases.Also,cementite tended to be stable during cold drawing process with the increase of V and N contents.Grade-80 tire cord steel can be replaced by grade-70 tire cord steel microalloyed with 0.086mass% V. Commercial grade-70 tire cord steel was microalloyed with V and N to explore the possibility of substituting V for C and the effect of V and N on cementite dissolution during cold drawing process. Sensile strength, elongation and torsion laps of cold-drawn wires were determined. Microstructures of secondary phases were studied by transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS). Saturation magnetization was measured by using a vibrating sample magnetometer (VSM) to evaluate cementite dissolution during cold drawing process. Experimental results showed that with the increase of V content, tensile strength increased, elongation slightly decreased, and the torsion laps of the cold-drawn wires decreased. Results also showed that with the increase of N content, apeak (increasing first and then decreasing) graph, and an increase of elongation and a decrease of torsion laps of the cold-drawn wires occured. N is soluble in ferrite when its content i s low. increase in the content of N to 82 × 10-6 will result in the precipitation of the V-containing secondary phases. Also, cementite tended to be stable during cold drawing process with the increase of V and N contents. Grade -80 tire cord steel can be replaced by grade-70 tire cord steel microalloyed with 0.086mass% V.
其他文献
意蕴是散文的灵魂,只有很好地感受散文的意蕴,才能更加解读散文的诗情画意。从用情诵读,体验作者隐含情意;把握情感,体会文章的意蕴;学会鉴赏,感受散文语言美;披文入情,实现
目的:为了调查产科护理当中的不安全因素以及防范措施,降低出现护理失误的几率.方法:选取我院2015年6月-2016年6月收治的产妇1500例作为研究对象,同时出现护理差错的病例包含
目的:规范化护理对2型糖尿病胰岛素泵强化治疗效果分析.方法:选择2016年1月到2017年1月南宁市第八人民医院收治的50例2型糖尿病患者为研究的对象,随机分组,将其分为观察组和
以塔式起重机用起升机构为研究对象,构建了空间布局方案设计的数学模型,编制了相应的计算程序,获得一系列起升机构的布局方案。在此基础上,提出方案的评价方法,计算获得众多
目的:探究冠心病合并高血压的护理要点,为后续的临床护理提供方法参考.方法:将收治的68例冠心病合并高血压的患者随机分为观察组及对照组,对照组患者给予一般的护理措施,观察
目的:探究综合护理应用在老年冠心病合并高血压患者中的临床效果.方法:随机选取我院2014年8月-2016年8月收治的104例老年冠心病合并高血压患者作为观察对象,依照护理方法的不
目的:探讨关节镜下前交叉韧带重建术患者围术期护理.方法:研究来自我院2015年2月至2016年12月期间收治的40例关节镜下前交叉韧带重建术患者,依据不同护理方法分为对照组与观
请下载后查看,本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view profile.
期刊
目的:探究饮食护理应用于老年人糖尿病患者中的临床效果.方法:随机选取我院2015年8月-2017年2月收治的76例老年人糖尿病患者作为观察对象,依照护理方法的不同随机分成试验组
请下载后查看,本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view profile.