TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)
Online ISSN : 1880-0408
Print ISSN : 0389-2441
ISSN-L : 0389-2441
Temperature Measurements and Direct Observation in Load-controlled Tensile Test at Cryogenic Temperature
Tosio OGATAOsamu UMEZAWATetsumi YURIKeisuke ISHIKAWA
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1987 Volume 22 Issue 2 Pages 128-132

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Abstract
The specimen heating during displacement-controlled and load-controlled tensile test was measured on high manganese steel. Direct observation of deformation behaviors and heat conduction at the specimen surface in liquid helium was also performed. The results are summarized as follows:
1) The deformation behaviors obtained in high manganese steel are similar to those obtained in austenitic stainless steels.
2) Inspite of large discontinuous deformation in load-controlled test, the magnitude of temperature rise during the deformation is not so different from that observed in displacement-controlled test.
3) It is clarified that the change of condition of helium and heat conductance at the specimen surface cause the abrupt and large deformation in load-controlled tensile test.
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© Cryogenic Association of Japan
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