The effect of mechanical deformation to the magnetic properties of stainless steel 304

8th International Conference on Physics and its Applications

Mubarok, N.^1 ; Notonegoro, H.A.^2 ; Thosin, K. A. Zaini^3 ; Manaf, A.^1

PPS Materials Science, FMIPA-Universitas Indonesia, Depok

16424, Indonesia^1

Mechanical Engineering Dept., FT-Universitas Sultan Ageng Tirtayasa, Cilegon

42435, Indonesia^2

Pusat Penelitian Fisika, LIPI, Serpong, Indonesia^3

关键词: 304 austenitic stainless steels;    Corrosion-resistant;    Crystallite structures;    Martensitic phase;    Mechanical deformation;    Mechanical treatments;    Metallographic observations;    Stainless steel-304;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/776/1/012014/pdf
DOI  :  10.1088/1742-6596/776/1/012014

来源: IOP

【 摘 要 】

A study of a non-magnetic 304 austenitic stainless steel alloy through mechanical deformation has been done. These specimens are pipe usually used to deliver gas which contains corrosive oil fields. The metallographic observation of a 20% deformation shows the increase in the value of the magnetization, as compensation for the formation of martensite phase as a result of a mechanical treatment. Martensitic phase formed due to a shift in the structure of the z-axis due to the effects of pressure and shear from the cold rolled. The existence of martensite phase and magnetic properties conducted through x-ray diffraction and permagraf investigation. An identified x-ray diffraction pattern shows the presence of a new peak between 10°-30° angle indicate the mechanical deformation in crystallite structure. Furthermore, at in 20% distortion, the value of magnetization is increased above 0.2 T in small coercivity value and caused decreased the ability of corrosion resistant.