预先Mn配分对中锰钢中温连续冷却过程中贝氏体相变的影响
Effect of Mn Pre-Partitioning on Bainite Transformation During Medium-Temperature Continuous Cooling of Medium Mn Steel
预先Mn配分对中锰钢中温连续冷却过程中贝氏体相变的影响 |
| 郑沁园, 刘朋, 路轶, 朱海龙, 郑成武, 栾义坤, 李殿中 |
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Effect of Mn Pre-Partitioning on Bainite Transformation During Medium-Temperature Continuous Cooling of Medium Mn Steel |
| ZHENG Qinyuan, LIU Peng, LU Yi, ZHU Hailong, ZHENG Chengwu, LUAN Yikun, LI Dianzhong |
| 图2 奥氏体化预退火0.2C-3Mn-1.5Si中锰钢在中温连续冷却处理时的热膨胀曲线和微观组织的SEM像、EBSD像和Mn元素分布图 |
| Fig.2 Dilatation curve (a), SEM image (b), EBSD-band contrast (BC) map overlapped with the phase map of austenite (c), and Mn distribution map (d) of the 0.2C-3Mn-1.5Si MMnS austenitizing pre-annealed at 850 oC followed by continuous cooling from a medium temperature of 400 oC (ΔL—change in sample length, αB—bainitic ferrite, αM—martensite, γ—retained austenite. Inset in Fig.2a shows a magnified view of the dilatation infection due to bainite transformation during continuous cooling. The red arrows in Fig.2b point to the flak-like retained austenite that forms during the bainite transformation) |
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