Comparison testings between two high-temperature strain measurement systems

被引:9
|
作者
Lei, JF
Castelli, MG
Androjna, D
Blue, C
Blue, R
Lin, RY
机构
[1] NASA,LEWIS RES CTR,NYMA INC,CLEVELAND,OH 44135
[2] NASA,LEWIS RES CTR,GILCREST,CLEVELAND,OH 44135
[3] UNIV CINCINNATI,DEPT MAT SCI & ENGN,CINCINNATI,OH 45221
关键词
D O I
10.1007/BF02328588
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
An experimental evaluation was conducted at NASA Lewis Research Center to compare and contrast the performance of a newly developed resistance strain gage, the PdCr temperature-compensated wire strain gage, to that of a conventional high-temperature extensometry, The evaluation of the two strain measurement systems was conducted through the application of various thermal and mechanical loading spectra using a high-temperature thermomechanical uniaxial testing system equipped with quartz lamp heating. The purpose of the testing was not only to compare and contrast the two strain sensors but also to investigate the applicability of the PdCr strain gage to the testing environment typically employed when characterizing the high-temperature mechanical behavior of structural materials, Strain measurement capabilities to 800 degrees C were investigated with a nickel base superalloy IN100 substrate material, and application to titanium matrix composite (TMC) materials was examined with the SCS-6/Ti-15-3 [0](8) system, PdCr strain gages installed by three attachment techniques-namely, flame spraying, spot welding and rapid infrared joining-were investigated.
引用
收藏
页码:430 / 435
页数:6
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