Effects of high magnetic fields on the flow stress of 18-8 stainless steels

✍ Scribed by B. Fultz; J.W. Morris Jr

• Publisher: Elsevier Science
• Year: 1986
• Weight: 704 KB
• Volume: 34
• Category: Article
• ISSN: 0001-6160
• DOI: 10.1016/0001-6160(86)90073-8

✦ Synopsis

The plastic deformation of two 18-8 stainless steels was studied in magnetic fields as large as 18 T at temperatures of 4, 77 and 290 K. Changes in stress-strain behavior during magnetic exposure at cryogenic temperatures are reported, and are associated with an enhanced f.c.c.+b.c.c. martensitic transformation.

In the magnetic field a reduced flow stress was observed at small strains, but at larger strains an increased rate of work hardening and a larger flow stress were observed. Additionally, a reduced elongation was found for the specimens tested in the magnetic field. Although these effects of magnetic fields are probably too small to be of engineering importance, they provide a unique means of determining how the f.c.c.+b.c.c. martensitic transformation affects the plastic deformation of 18-8 stainless steels.