| 稀土低温高浓度气体渗碳工艺及其在20Cr2Ni4A钢上的应用 |
| |
| 引用本文： | 刘志儒,朱法义.稀土低温高浓度气体渗碳工艺及其在20Cr2Ni4A钢上的应用[J].金属热处理,1994(11):15-19. |
| |
| 作者姓名： | 刘志儒 朱法义 |
| |
| 作者单位： | 哈尔滨工业大学!哈尔滨150001(刘志儒，朱法义，蔡成红，闫牧夫)，淮南煤矿机械厂(陈静东，马崇信) |
| |
| 摘 要： | ２０Ｃｒ２Ｎｉ４Ａ钢由于渗碳层奥氏体十分稳定，无法渗碳后直接淬火，而需经过复杂的热处理，本文采用稀土低温高浓度大气体渗碳，使渗层过共析区沉淀析出大量细小弥散的碳化物，奥氏体的稳定性大幅度下降，实现了渗后直接淬火，同时使组织和性能得到进一步改善。
|
| 关 键 词： | 渗碳 碳势 铬镍钢 稀土族 催渗 |
High Carbon Concentration Carburizing Process at Low Temperature with Rare Earth Element and its Application to Steel 20Cr2Ni4A |
| |
| Liu Zhiru, Zhu Fayi, Cai Chenghong, Yan Mufu, Cheng Jingdong, Ma Chongxin.High Carbon Concentration Carburizing Process at Low Temperature with Rare Earth Element and its Application to Steel 20Cr2Ni4A[J].Heat Treatment of Metals,1994(11):15-19. |
| |
| Authors: | Liu Zhiru Zhu Fayi Cai Chenghong Yan Mufu Cheng Jingdong Ma Chongxin |
| |
| Affiliation: | Liu Zhiru; Zhu Fayi; Cai Chenghong; Yan Mufu; Cheng Jingdong; Ma Chongxin |
| |
| Abstract: | The complicate heat treatment process must be used for the steel 20Cr2Ni4A which contains quite stable austenite in its carburized layer and can't be quenched directly after carburizing. The results of applying the high carbon concentration carburizing process at low temperature with rare earth element to steel 20Cr2Ni4A show that a great deal of fine granular dispersed carbides precipitate in hypereutectoid zone of carburized case while the stability of austenite decreases remarkably and so the direct quenching process can be applied after carburizing. Thus the microstructure and properties can be improved furtherly. |
| |
| Keywords: | Rare earth element carburizing high carbon concentration carburizing high carbon potential carburizing |
| 本文献已被 CNKI 维普 等数据库收录！ |
