Measurement of residual stresses in the cold-rolled Fe-Ni-Mn/Invar thermo-bimetallic plate
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2026
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Trans Tech Publications Ltd
Abstrakt
The paper presents a method for measuring residual stresses in normal thermo-bimetal
Fe-Ni-Mn/Invar strips with a thickness of 0.76 mm. For this purpose, a setup was designed which
permits to remove layers from a strip substrate by electrochemical etching. Residual stresses in the
directions that are longitudinal and transversal to rolling are determined by the curvature method
based on the layer growing/removing techniques. As a reference, residual stresses were also
determined by hole-drilling technique. Tensile and compressive residual stresses arose both in
active and in passive layers and were considerably higher when determined by the hole-drilling
technique.
Kirjeldus
© (2014) Trans Tech Publications, Switzerland
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thermo-bimetal, layer removing, curvature method, hole-drilling technique, residual stresses, articles