stress-relief heat treatment

stress-relief heat treatment, stress relieving

The uniform heating of a material or structure to a temperature high enough to relieve the major portion of the residual stresses, followed by uniform cooling.
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Figure 8 shows that, even though the hardesses of the un-heat-treated specimens are not distinguishable, a negative correlation exists between the initial hardness and the change in hardness caused by the stress-relief heat treatment at 650[degrees]C.
The recommended stress-relief heat treatment increases the tensile strength, reduces the yield strength, and decreases the extent of the discontinuous yielding: Fig.
The mechanical properties, assessed by hardness, are very uniform across the build plate, but the stress-relief heat treatment introduced a small non-uniformity that had no correlation to position on the build plate: Sec.

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