Influence of Antimony on the Texture and Properties of 2 % Si , 0 . 3 % A 1 Steel for Non - Oriented Sheet
نویسنده
چکیده
The effect of additions of antimony (0.05% Sb) to silicon steel on the improvement of the electrical properties of non-oriented steel sheet was investigated. Measurements of surface segregation of Sb were performed under UHV conditions in the temperature range from 450 to 900 OC, using AES and TDS. Maximum equilibrium surface segregation of antimony was determined at 700 OC. At higher temperatures, T> 800°C, the desorption of antimony from the surface was measured. The grain boundary segregation was negligible and we can conclude that the texture formation, rich in (100) grains, results from the effect of the orientation dependent surface segregation of Sb. This segregation causes differences in surface energies and the stability of different grains. Controlled surface segregation promotes selective grain growth improving the electrical properties of non-oriented steel sheet.
منابع مشابه
The Effect of Cold Rolling Process on the Microstructure and Texture Evolution in a 1 wt. % Si Non-oriented Electrical Steel
In this study, the effect of cold rolling process on the microstructure and texture evolution in 1wt. % Si non-oriented electrical steel was investigated. For this purpose, all samples were processed through single-stage hot rolling at 1100 ° C and two-stage cold rolling (cross rolling and unidirectional rolling) with intermediate annealing at 650 °C for 35 seconds. Finally, all of them were fu...
متن کاملEFFECT OF SECOND PHASE PARTICLES TOPOLOGY ON THE ONSET TEMPERATURE OF ABNORMAL GRAIN GROWTH IN Fe - 3%Si STEELS
Electrical steels are undoubtedly the most important soft magnetic materials in use today. Applications vary in quantities from the few ounces used in small relays or pulse transformers to tons used in generators, motors, and transformers. There are two principal types of electrical steels: grain oriented and non-oriented steels. The grain oriented (GO) electrotechnical steel sheets are widely ...
متن کاملCorrelation of Titanium Content and Core Loss in Non-oriented Electrical Steel Sheets
The core loss of electrical steel is defined as the dissipation of electrical energy in the form of heat during magnetization by an alternating current. Many efforts have been made to reduce the core loss. Numerous parameters, including the chemical composition and the metallurgical technology, influence the properties of the steel. Electrical steel sheets are mainly produced from Fe-Si-C alloy...
متن کاملInfluence of rotational speed on the development of microstructure in a friction stir welded 304 austenitic stainless steel
Friction stir welding was conducted on AISI 304 austenitic stainless steel sheet with dimensions of 100 mm × 100 mm × 2 mm. The FSW was performed at a welding speed of 150 mm/min and rotational speeds of 400 and 800 rpm. The results showed that high frequency of low angle grain boundaries (LAGBs) were formed through dynamic recovery in the thermo-mechanically affected zone (TMAZ). Higher amoun...
متن کاملInfluence of rotational speed on the development of microstructure in a friction stir welded 304 austenitic stainless steel
Friction stir welding was conducted on AISI 304 austenitic stainless steel sheet with dimensions of 100 mm × 100 mm × 2 mm. The FSW was performed at a welding speed of 150 mm/min and rotational speeds of 400 and 800 rpm. The results showed that high frequency of low angle grain boundaries (LAGBs) were formed through dynamic recovery in the thermo-mechanically affected zone (TMAZ). Higher amoun...
متن کامل