• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >NONLINEAR ANELASTICITY OF STRESS INDUCED MARTENSITIC TRANSFORMATION IN A COPPER-15ALUMINUM-3NICKEL ALLOY (INTERNAL FRICTION, SHAPE MEMORY ALLOY).
【24h】

NONLINEAR ANELASTICITY OF STRESS INDUCED MARTENSITIC TRANSFORMATION IN A COPPER-15ALUMINUM-3NICKEL ALLOY (INTERNAL FRICTION, SHAPE MEMORY ALLOY).

机译：铜15铝3镍合金（内部摩擦，形状记忆合金）中应力引起的马氏体相变的非线性弹性。

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

The dynamics of stress induced martensitic transformation in a Cu-15Al-3Ni alloy (A(,f) = 17(DEGREES)C) has been studied with finite amplitude internal friction. The resonance curves of a reed were measured in vacuum at resonance frequencies of 9, 22, 40 and 60 Hz and at temperatures of 93, 53, 23, -2 and -12(DEGREES)C. The frequency response equation resulting from the theory of the nonlinear anelasticity extended to 4th order was used to analyze the resonance curves quantitatively. The linear damping showed a pronounced peak at 9 Hz and a small peak at 22 Hz at -2(DEGREES)C. The 3rd order nonlinear damping displayed a large increase and the 3rd order nonlinear elastic constant showed a steep decrease as the temperature approached the A(,f) for all the resonance frequencies investigated. The anomalous temperature dependence of the linear damping and that of the ratio of the 3rd order nonlinear damping divided by the 3rd order nonlinear elastic constant at 9 Hz could be interpreted in terms of the dynamics of a system governed by a double well potential.
机译：以有限振幅的内摩擦研究了Cu-15Al-3Ni合金（A（，f）= 17（DEGREES）C）中应力诱发的马氏体相变的动力学。在真空中以9、22、40和60 Hz的共振频率以及在93、53、23，-2和-12（DEGREES）C的温度下测量芦苇的共振曲线。由非线性弹性理论扩展到四阶的频率响应方程被用来定量分析共振曲线。线性阻尼在-2（DEGREES）C下显示9 Hz处的明显峰和22 Hz处的小峰。随着温度接近所研究的所有共振频率，三阶非线性阻尼表现出较大的增加，而三阶非线性弹性常数呈现出急剧的下降。线性阻尼的异常温度依赖性以及三阶非线性阻尼之比除以9 Hz的三阶非线性弹性常数的温度依赖性可以用受双阱势控制的系统动力学来解释。

著录项

  • 作者

    HWANG, IN-CHEOL.;

  • 作者单位

    University of Missouri - Rolla.;

  • 授予单位 University of Missouri - Rolla.;
  • 学科 Engineering Metallurgy.
  • 学位 Ph.D.
  • 年度 1985
  • 页码 68 p.
  • 总页数 68
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 冶金工业;
  • 关键词

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