| 热处理工艺对预硬型塑料模具钢组织与性能的影响 |
| |
| 引用本文： | 周洪宝,蔡庆伍,武会宾,陕钰. 热处理工艺对预硬型塑料模具钢组织与性能的影响[J]. 金属热处理, 2012, 0(2): 45-48 |
| |
| 作者姓名： | 周洪宝 蔡庆伍 武会宾 陕钰 |
| |
| 作者单位： | 北京科技大学高效轧制国家工程研究中心 |
| |
| 摘 要： | 通过研究预硬型塑料模具钢锻后砂冷、350℃回火、500℃回火、退火及退火后500℃回火等不同状态下组织及力学性能并进行分析。试验结果表明,锻后砂冷工艺与其它工艺相比,综合性能良好,锻后砂冷可取代回火处理工艺。试验用塑料模具钢残留奥氏体较少,残留奥氏体对材料力学性能的改善将有限,回火后力学性能变化的主要原因是渗碳体的析出。
|
| 关 键 词： | 显微组织 粒状贝氏体 淬透性 力学性能 |
Effects of heat treatment on microstructure and mechanical properties of prehardened plastic mould steel |
| |
| ZHOU Hong-bao,CAI Qing-wu,WU Hui-bin,SHAN Yu. Effects of heat treatment on microstructure and mechanical properties of prehardened plastic mould steel[J]. Heat Treatment of Metals, 2012, 0(2): 45-48 |
| |
| Authors: | ZHOU Hong-bao CAI Qing-wu WU Hui-bin SHAN Yu |
| |
| Affiliation: | (National Engineering Research Center of Advanced Rolling,University of Science and Technology Beijing,Beijing 100083,China) |
| |
| Abstract: | Microstructure and mechanical properties of prehardened plastic mould steel forged and heat treated were investigated.The results show that the mechanical properties of forged and sand cooled steel are more preferable than that of the tempered or annealed steel,the forged and sand cooled mould steel can be instead of the tempered mould steel.The residual austenite in the steel is too less to improve the mechanical properties obviously and the precipitation of carbides is the main cause for mechanical property improvement after tempering. |
| |
| Keywords: | microstructure granular bainitic hardenability mechanical properties |
| 本文献已被 CNKI 等数据库收录！ |
|
