...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Nondestructive Evaluation >Ultrasonic Propagation and Scattering in Duplex Microstructures with Application to Titanium Alloys
【24h】

Ultrasonic Propagation and Scattering in Duplex Microstructures with Application to Titanium Alloys

机译：超声在双相组织中的传播和散射及其在钛合金中的应用

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A general model for elongated duplex microstructures is proposed for modeling scattering-induced ultrasonic longitudinal attenuation in hexagonal polycrystals for application to titanium alloys. The material system consists of microtextured regions (MTRs) which are formed by much smaller α crystallites with preferred orientations. Their preferred orientation is represented by a modified Gaussian orientation distribution function. Scattering induced by MTRs and by crystallites is added to obtain ultrasonic attenuation in the medium. The effective elastic properties of MTRs are determined and used to obtain the scattering-induced MTR attenuation and backscattering. Crystallite attenuation is estimated by the untextured attenuation coefficient factored by a texture transition function. The total attenuation is obtained by combining solutions for microtextured region attenuation and crystallite attenuation. Spectroscopic attenuation and backscattering measurements are performed on a forged sample of titanium alloy. Reasonable agreement is found between experiment and the model predictions with a given texture parameter.
机译：提出了一种细长的双相微结构的通用模型，用于对六边形多晶中散射引起的超声纵向衰减建模，以应用于钛合金。材料系统由微纹理区域（MTR）组成，这些区域由具有优选方向的小得多的α晶粒形成。它们的首选方向由修改后的高斯方向分布函数表示。添加了由MTR和微晶引起的散射，以在介质中获得超声衰减。确定MTR的有效弹性，并将其用于获得散射引起的MTR衰减和反向散射。微晶衰减通过纹理过渡函数分解出的无纹理衰减系数估算。通过组合微织构区域衰减和微​​晶衰减的解决方案，可以获得总衰减。对钛合金的锻造样品进行光谱衰减和反向散射测量。在给定的纹理参数下，实验和模型预测之间找到合理的一致性。

著录项

  • 来源
    《Journal of Nondestructive Evaluation》 |2012年第3期|p.270-283|共14页
  • 作者

    L. Yang; J. Li; O. I. Lobkis; S. I. Rokhlin;

  • 作者单位

    Department of Materials Science and Engineering, Edison Joining Technology Center, The Ohio State University, 1248 Arthur E. Adams Dr., Columbus, OH, 43221, USA;

    Department of Materials Science and Engineering, Edison Joining Technology Center, The Ohio State University, 1248 Arthur E. Adams Dr., Columbus, OH, 43221, USA;

    Department of Materials Science and Engineering, Edison Joining Technology Center, The Ohio State University, 1248 Arthur E. Adams Dr., Columbus, OH, 43221, USA;

    Department of Materials Science and Engineering, Edison Joining Technology Center, The Ohio State University, 1248 Arthur E. Adams Dr., Columbus, OH, 43221, USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ultrasonic attenuation and backscattering; Modeling and experiment; Application to titanium alloys; Microtexture and duplex microstructures;

    机译：超声衰减与反向散射;建模与实验;在钛合金中的应用;显微组织和双相组织;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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