|
|||||
|
|
| Changes of Tempering Microstructure and Properties of Fe-Cr-V-Ni-Mn-C Cast Alloys | |
| 作者姓名： | LIUYan-xia MAYong-qing WANGYue-hua ZHANGZhan-ping ZHANGYang |
| 作者单位： | [1]InstituteofMaterialsandTechnology,DalianMaritimeUniversity,Dalian,China／DepartmentofPhysics,LiaoningUniversity,Shenyang,China [2]InstituteofMaterialsandTechnology,DalianMaritimeUniversity,Dalian,China [3]DepartmentofPhysics,LiaoningUniversity,Shenyang,China |
| 摘 要： | The changes of tempering microstructure and properties of Fe-Cr-V-Ni-Mn-C cast alloys with martensite matrix and much retained austenite are studied. The results showed that when tempering at 200℃ the amount of retained austenite in the alloys is so much that is nearly to as-cast, and a lot of retained austenite decomposes when tempering at 350℃ and the retained austenite decomposes almost until tempering at 560℃. When tempering at 600℃, the retained austenite in the alloys all decomposes. At 560℃ the hardness is highest due to secondary hardening. The effect of nickel and manganese on the microstructure and properties of Fe-Cr-V-C cast alloy were also studied. The results show that the Fe-Cr-V-C cast alloy added nickel and manganese can obtain martensite matrix and much retained austenite microstructure, and nickel can also prevent pearlite transformation. With the increasing content of nickel and manganese, the hardness of as-cast alloy will decreases gradually, so one can improve the hardness of alloy by tempering process. When the content of nickel and manganese is 1.3～1.7%, the hardness of secondary hardening is the highest (HRC64). But when the content of nickel and manganese increase continually, the hardness of secondary hardening is low slightly, and the tempering temperature of secondary hardening rises. |
| 关 键 词： | Fe-Cr-V-Ni-Mn-C合金 显微结构 调温过程 热处理 |
Changes of Tempering Microstructure and Properties of Fe-Cr-V-Ni-Mn-C Cast Alloys |
|
| LIUYan-xia MAYong-qing WANGYue-hua ZHANGZhan-ping ZHANGYang.Changes of Tempering Microstructure and Properties of Fe-Cr-V-Ni-Mn-C Cast Alloys[J].Transactions of Materials and Heat Treatment,2004,25(5):631-634. | |
| Authors: | LIU Yan-xia MA Yong-qing WANG Yue-hua ZHANG Zhan-ping ZHANG Yang |
| Affiliation: | 1. Institute of Materials and Technology, Dalian Maritime University, Dalian, China;Department of Physics, Liaoning University, Shenyang, China 2. Institute of Materials and Technology, Dalian Maritime University, Dalian, China 3. Department of Physics, Liaoning University, Shenyang, China |
| Abstract: | The changes of tempering microstructure and properties of Fe-Cr-V-Ni-Mn-C cast alloys with martensite matrix and much retained austenite are studied. The results showed that when tempering at 200℃ the amount of retained austenite in the alloys is so much that is nearly to as-cast, and a lot of retained austenite decomposes when tempering at 350℃ and the retained austenite decomposes almost until tempering at 560℃. When tempering at 600℃, the retained austenite in the alloys all decomposes. At 560℃ the hardness is highest due to secondary hardening. The effect of nickel and manganese on the microstructure and properties of Fe-Cr-V-C cast alloy were also studied. The results show that the Fe-Cr-V-C cast alloy added nickel and manganese can obtain martensite matrix and much retained austenite microstructure, and nickel can also prevent pearlite transformation. With the increasing content of nickel and manganese, the hardness of as-cast alloy will decreases gradually, so one can improve the hardness of alloy by tempering process. When the content of nickel and manganese is 1.3～1.7%, the hardness of secondary hardening is the highest (HRC64). But when the content of nickel and manganese increase continually, the hardness of secondary hardening is low slightly, and the tempering temperature of secondary hardening rises. |
| Keywords: | Fe-Cr-V-Ni-Mn-C alloy tempering process transformation property |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |