Abstract:
Изучено влияние величины предварительной пластической деформации, моделирующей исходное напряженно-деформированное состояние (НДС) изделия, на поведение магнитных характеристик металла различных зон сварной трубы при последующем упругом растяжении и сжатии. Измерения магнитных характеристик образцов проводили как в условиях замкнутой магнитной цепи, так и с применением накладных преобразователей вдоль и поперек направления приложения нагрузки. The effect of the value of preliminary plastic deformation viewed as an initial stress-strain state on the magnetic behavior of metal in different zones of welded pipe under subsequent elastic uniaxial tension/compression. Magnetic characteristics were measured both in a closed magnetic circuit and with the use of attached transducers along the direction of applied loading. The plastic deformation history affects the magnetic behavior of the material in different zones of welded pipe during subsequent elastic deformation, as plastic strain induces various residual stresses, and this necessitates taking into account the initial stress-strain state of products when developing magnetic techniques for the determination of their stress-strain parameters in operation.
