| 淬火配分-深冷复合处理下NM300耐磨钢微观组织与性能研究 |
| |
| 引用本文： | 陈军明,孔令男,尹臣男,胡雨灿,陈志国.淬火配分-深冷复合处理下NM300耐磨钢微观组织与性能研究[J].矿冶工程,2022,42(3):143-146. |
| |
| 作者姓名： | 陈军明 孔令男 尹臣男 胡雨灿 陈志国 |
| |
| 作者单位： | 1.中南大学 材料科学与工程学院, 湖南 长沙 410083;
2.湖南人文科技学院 能源与机电工程学院, 湖南 娄底 417000;
3.湖南华菱涟源钢铁有限公司, 湖南 娄底 417009 |
| |
| 基金项目： | 湖南省“双一流”学科建设项目(18A411,18B452) |
| |
| 摘 要： | 利用扫描电子显微镜、室温拉伸、室温冲击、往复式摩擦磨损实验等手段, 研究了淬火配分-深冷复合处理对NM300低合金耐磨钢微观组织、力学性能及耐磨性能的影响。结果表明: 经淬火配分-深冷复合工艺处理后, 耐磨钢微观组织由马氏体/贝氏体、铁素体及残余奥氏体组成;相较于淬火配分处理, 淬火配分-深冷复合处理提高了耐磨钢的抗拉强度、硬度和冲击韧性, 强塑积达到17 GPa·%以上, 冲击韧性提升了5.97%, 耐磨性提升了29.0%。
|
| 关 键 词： | 低合金耐磨钢 淬火配分-深冷工艺 微观组织 力学性能 耐磨性能 |
| 收稿时间： | 2021-12-18 |
Microstructure and Properties of NM300 Wear-Resistant Steel After Quenching-Partitioning Combined with Cryogenic Treatment |
| |
| CHEN Jun-ming,KONG Ling-nan,YIN Chen-nan,HU Yu-can,CHEN Zhi-guo.Microstructure and Properties of NM300 Wear-Resistant Steel After Quenching-Partitioning Combined with Cryogenic Treatment[J].Mining and Metallurgical Engineering,2022,42(3):143-146. |
| |
| Authors: | CHEN Jun-ming KONG Ling-nan YIN Chen-nan HU Yu-can CHEN Zhi-guo |
| |
| Affiliation: | 1.School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China;
2.School of Energy and Electromechanical Engineering, Hunan University of Humanities, Science and Technology, Loudi 417000, Hunan, China;
3.Hunan Valin Lianyuan Iron and Steel Co Ltd, Loudi 417009, Hunan, China |
| |
| Abstract: | The effects of quenching-partitioning (QP) combined with cryogenic treatment (CT) on the microstructure, mechanical properties and wear resistance of NM300 low-alloy wear-resistant steel were investigated by means of scanning electron microscope, and performing a series of tests on mechanical tensile, room temperature impact and reciprocating wear. The results show that after the QP combined with CT, the microstructure of the wear-resistant steel is composed of martensite/bainite, ferrite and retained austenite. Compared with the single QP, the QP combined with CT improves the tensile strength, hardness and impact toughness of the wear-resistant steel, leading to the product with the strength and elongation exceeding 17 GPa·%, the impact toughness increased by 5.97%, and the wear resistance improved by 29.0%. |
| |
| Keywords: | low-alloy wear-resistant steel quenching-partitioning combined with cryogenic treatment microstructure mechanical properties wear resistance |
|
| 点击此处可从《矿冶工程》浏览原始摘要信息 |
|
点击此处可从《矿冶工程》下载全文 |
|
