• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Materials >Characterization of Damage Evolution on Hot Flat Rolled Mild Steel Sheets by Means of Micromagnetic Parameters and Fatigue Strength Determination
【2h】

Characterization of Damage Evolution on Hot Flat Rolled Mild Steel Sheets by Means of Micromagnetic Parameters and Fatigue Strength Determination

机译：利用微磁参数和疲劳强度测定表征热轧薄钢板的损伤演变

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In continuous casting processes, inevitable voids (damage) are generated inside the material. The subsequent forming process of hot flat rolling offers the potential of healing these defects by closing the voids and bonding the internal surfaces. In this paper, different forming conditions from hot flat rolling process were characterized with micromagnetic measurement techniques and the influence of the damage evolution on the fatigue behavior was investigated. To characterize the reduction of voids through hot flat rolling processes, nondestructive testing techniques are required. Therefore, micromagnetic measurements such as Barkhausen noise, incremental permeability, and harmonic analysis were carried out, correlated with the number of voids, and compared with each other. The influence of damage evolution of different forming conditions on the fatigue behavior was characterized based on instrumented constant amplitude and multiple amplitude (load increase) tests. A significant increase in fatigue strength due to the hot flat rolling process, which leads to a reduction in the number of voids, was observed. In addition, the fracture surfaces of the specimens were analyzed in the scanning electron microscope.
机译：在连续铸造过程中，材料内部不可避免地会产生空隙（损坏）。热平轧的后续成形工艺通过封闭空隙并粘结内表面提供了修复这些缺陷的潜力。本文利用微磁测量技术表征了热轧不同成形条件，并研究了损伤演变对疲劳行为的影响。为了表征通过热扁轧工艺减少的空隙，需要无损检测技术。因此，进行了诸如巴克豪森噪声，增量磁导率和谐波分析之类的微磁测量，将其与空隙的数量相关联，并进行了比较。基于仪器的恒定振幅和多重振幅（载荷增加）测试，表征了不同成形条件下的损伤演变对疲劳行为的影响。观察到由于热平轧工艺而导致的疲劳强度显着增加，这导致空隙数量的减少。另外，在扫描电子显微镜中分析样品的断裂表面。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号