Abstract
Since the 1950's, there has been much effort to examine the influence of magnetic field on mechanical properties of ferromagnetic metals and alloys. It has been well-documented that lattice defects can influence the magnetic behavior, for example, the change of magnetic susceptibility of steels during plastic deformation or fatigue loading, or the Barkhausen effect, which is caused by the interaction of moving domain walls with lattice imperfection. The present paper is one part of the work to investigate the influences of magnetic field and hydrogen charging on mechanical properties of iron and its alloys. The 2.25Cr-1Mo (ASTM A387) steel was chosen because hydrogen embrittlement of this steel had been widely investigated and the response to hydrogen charging was well-known. So the possible influence of magnetic field could be separated.
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