|
|
|
Possible influence of sulfur content on magnetic aging behaviors of non-oriented electrical steels |
Wei-Min MAO( ), Ping YANG, Chang-Rong LI |
| Department of Materials, State Key Laboratory of Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China |
|
|
|
|
Abstract Six non-oriented steel sheets of similar grade produced by different steel companies were used to analyze the magnetic aging behaviors after aging at 200°C for 48 h. It was observed that tiny S atoms, besides C and N, could also induce certain increase of core loss during aging. Thermodynamic calculation indicated that the nucleation driving force of FeS is much higher than those of Fe3C and Fe4N at low temperature, while S atoms, which tend to segregated around dislocations and boundaries, would diffuse rapidly along the crystalline defects while FeS particles would form. Therefore, higher content of tiny S atoms could increase core loss during service time of non-oriented steel sheets.
|
| Keywords
non-oriented electrical steel
sulfur diffusion
magnetic aging
core loss
|
|
Corresponding Author(s):
MAO Wei-Min,Email:wmmao@ustb.edu.cn
|
|
Issue Date: 05 December 2013
|
|
| 1 |
Ray S K, Mohanty O N. Magnetic ageing characteristics of low silicon electrical steels. Journal of Magnetism and Magnetic Materials , 1982, 28(1-2): 44-50
|
| 2 |
Marra K M, Alvarenga E A, Buono V T L. Magnetic aging anisotropy of a semi-processed non-oriented electrical steel. Materials Science and Engineering A , 2005, 390(1-2): 423-426
|
| 3 |
de Campos M F, Emura M, Landgraf F J G. Consequences of magnetic aging for iron losses in electrical steels. Journal of Magnetism and Magnetic Materials , 2006, 304(2): e593-e595
|
| 4 |
Xu L, Mao W, Yang P, . Influence of texture on magnetic aging of cold rolling non-oriented silicon steel sheets. Steel Research International , 2008, 79(9): 717-720
|
| 5 |
Ray S K, Mohanty O N. On predicting the extent of magnetic aging in electrical steels. Journal of Magnetism and Magnetic Materials , 1989, 78(2): 255-262
|
| 6 |
Marra K M, Landgraf F J G, Buono V T. Magnetic losses evolution of a semi-processed steel during forced aging treatments. Journal of Magnetism and Magnetic Materials , 2008, 320(20): e631-e634
|
| 7 |
Xu L, Mao W, Yang P, . Influence of grain orientation on magnetic aging behavior of a non-oriented silicon steel sheet. In: Rollett A D, ed. Materials Processing and Texture: Ceramic Transactions, Volume 200 . Wiley-The American Ceramic Society , 2008, 371-378
|
| 8 |
Wu L, Mao W, Yang P, . Analysis of magnetic aging behaviors in low grade non-oriented electrical steels. Heat Treatment of Metals , 2011, 36(8): 46-50 (in Chinese)
|
| 9 |
Sennour M, Esnouf C. Contribution of advanced microscopy techniques to nanoprecipitates characterization: case of AlN precipitation in low-carbon steel. Acta Materialia , 2003, 51(4): 943-957
|
| 10 |
Heo N H. Sulfur segregation and intergranular fracture in α-iron. Scripta Materialia , 2004, 51(4): 339-342
|
| 11 |
Ainslie N G, Phillips V A, Turnbull D. Sulfur segregation at α-iron grain boundaries - II. Acta Metallurgica , 1960, 8(8): 528-538
|
| 12 |
Arabczyk W, Militzer M, Müssig H-J, . Contribution of pipe diffusion to surface segregation kinetics. Surface Science , 1988, 198(1-2): 167-179
|
| 13 |
Reichl B M, Eisl M M, Weis T, . Investigation of the diffusion properties of impurities in polycrystalline α-iron by means of AES. Surface Science , 1995, 331-333(Part A): 243 -248
|
| 14 |
Ku?era J, Stránsky K. Diffusion in iron, iron solid solutions and steels. Materials Science and Engineering , 1982, 52(1): 1-38
|
| 15 |
Kaur I, Gust W, Kozma L. Handbook of Grain and Interphase Boundary Diffusion Data . Stuttgart: Ziegler Press, 1989
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
