Long-term measurement of local creep deformation by optical fiber marking and remote monitoring

被引：0
|
作者：
Tu, S.-T. [1 ]
Gong, J.-M. [1 ]
Ling, X. [1 ]
He, X.-Y. [1 ]
机构：
[1] Department of Mechanical Engineering, Nanjing Univ. of Chemical Technology, Nanjing 210009, China
来源：
ASTM Special Technical Publication | 2001年 / 1402期
关键词：
Computer applications - Creep - Heat affected zone - High temperature effects - Image analysis - Optical fibers - Quartz applications - Remote sensing - Welds;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Creep deformation localization is a common occurrence generally found at high temperature components, typically in geometrical discontinuities and weldments. As the deformation in a small region can hardly be measured by conventional displacement gauge, a new technique for measuring long-term local creep deformation was developed by quartz optical fiber marking, remote monitoring and image processing. A long-term measurement of the creep deformations of base metal, weld metal and heat-affected zone in cross-weld specimens verifies the new technique.
引用
收藏
页码：184 / 192
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