论文部分内容阅读
通过热处理试验研究了加热温度和控制冷却对HN2154非调质钢组织和性能的影响。结果表明,随着加热温度的提高和冷却速度的加快,贝氏体含量逐步增多,规定塑性延伸强度明显下降。在冷却过程中当温度降至600~550℃时,进行保温和缓慢冷却可以有效防止贝氏体组织的产生,同时规定塑性延伸强度明显提高。
The effects of heating temperature and controlled cooling on microstructure and properties of HN2154 non-quenched and tempered steel were studied by heat treatment experiments. The results show that with the increase of heating temperature and cooling rate, the content of bainite gradually increases, and the plastic extension strength is obviously decreased. In the cooling process when the temperature dropped to 600 ~ 550 ℃, the insulation and slow cooling can effectively prevent the formation of bainite, while the provisions of plastic extension strength was significantly improved.