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Measurement of Residual Stresses by X-ray Diffraction Near Simulated Heat Affected Zones in Austenitic Stainless Steels

Conference · · Advances in X-Ray Analysis
 [1];  [1];  [2]
  1. Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (USA)
  2. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
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Simulated heat-affected zones (HAZs) were made in austenitic stainless steel specimens using a Gleeble. The samples were heated to temperatures as high as 1100°C by computer controlled resistance heating. By controlling the heating rate, maximum temperature, and cooling rate, a wide range of residual stresses were introduced in the specimens. Stress measurements were made using X-ray diffraction. It was found that significant stress gradients were produced in the simulated HAZs, and that all stresses were compressive in nature, both in the longitudinal and transverse directions. These results are not representative of the residual stresses determined in the HAZs of real welds, thus calling into question some aspects of the role of the Gleeble in such simulations.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (USA)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
AC05-84OR21400
OSTI ID:
6197631
Report Number(s):
CONF-9007149--6; ON: DE91008874
Conference Information:
Journal Name: Advances in X-Ray Analysis Journal Volume: 34
Country of Publication:
United States
Language:
English

References (1)

Residual Stress book January 1987

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Related Subjects

36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
AUSTENITIC STEELS
COHERENT SCATTERING
DIFFRACTION
HEAT AFFECTED ZONE
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
RESIDUAL STRESSES
SCATTERING
STAINLESS STEELS
STEELS
STRESSES
X-RAY DIFFRACTION
ZONES