Abstract
The temperature dependence of acoustic emission accompanying the plastic deformation of AISI type 304L austenitic stainless steel was investigated over the range 300–950 K. Upon increasing the test temperature the yield and flow stresses decreased while the intensity of acoustic emission increased markedly. The observed behavior is attributed to a transition of the mode of dislocation glide from planar to non-planar which resulted in a higher instantaneous plastic strain increment. Other implications are also discussed.
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