| 摘要 |
A non-oriented electrical steel sheet having a chemical composition comprising C: not more than 0.010 mass%, Si: 1.0-7.0 mass%, Mn: 0.001-3.0 mass%, sol. Al: 0.0001-3.5 mass%, P: 0.01-0.2 mass%, S: not more than 0.010 mass%, N: not more than 0.010 mass% and the remainder being Fe and inevitable impurities, wherein a ratio (P 120 /Fe 700 ) of a peak-peak height P 120 of P near to an electronic energy of 120 eV to a peak-peak height Fe 700 of Fe near to an electronic energy of 700 eV in an Auger differential spectrum obtained by analyzing a broken surface of a grain boundary through Auger electron spectroscopy is not less than 0.1 and a sheet thickness is 0.10-0.50 mm, and a motor using such a non-oriented electrical steel sheet as an iron core. |
