Abstract
The martensitic phase of 301 stainless steel has been locally transformed into the austenitic phase by irradiating it with a focused Ar-ion laser beam in order to investigate the local change of magnetic properties accompanying the phase transformation. The intensity of the magnetic signal was found to locally reduce at a laser power of 350 mW and almost extinguish at 550 mW with a beam spot size of 13.2 μm (at 1/e intensity), indicating the local austenitic phase transformation of the irradiated stainless steel.
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References
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On leave from Ltd., Shimoteno, Himeji, Hyogo 670, Japan