| W对铸态高铬铸铁组织和性能的影响 |
| |
| 引用本文： | 王新华,李志明,方晓辉,邢斌,匡毅,孙玉福.W对铸态高铬铸铁组织和性能的影响[J].现代铸铁,2010,30(3):31-33. |
| |
| 作者姓名： | 王新华 李志明 方晓辉 邢斌 匡毅 孙玉福 |
| |
| 作者单位： | 1. 郑州机械研究所,河南,郑州,450001
2. 郑州大学,材料科学与工程学院,河南,郑州,450002 |
| |
| 摘 要： | 采用金相显微镜、扫描电镜观察显微组织,X射线衍射分析相组成,并测定洛氏硬度、冲击韧度及耐磨性,研究了w(W)量对高铬铸铁组织及性能的影响。结果表明:含钨高铬铸铁的铸态组织为马氏体+奥氏体+碳化物;W在碳化物和基体中均匀分布,w(W)量为1%时,高铬铸铁硬度为58.75HRC,冲击韧度为11.18J/cm~2;w(W)量达到3%时,高铬铸铁冲击韧度明显下降;w(W)量在0~3%范围内渐增时,随着w(W)量的增加,耐磨性不断提高。
|
| 关 键 词： | 高铬铸铁 W 组织 力学性能 |
Influence of Tungsten on Microstructure and Properties of As-Cast Hi-Cr Cast Iron |
| |
| WANG Xin-hua,LI Zhi-ming,FANG Xiao-hui,XING Bin,KUANG Yi,SUN Yu-fu.Influence of Tungsten on Microstructure and Properties of As-Cast Hi-Cr Cast Iron[J].Modern Cast Iron,2010,30(3):31-33. |
| |
| Authors: | WANG Xin-hua LI Zhi-ming FANG Xiao-hui XING Bin KUANG Yi SUN Yu-fu |
| |
| Affiliation: | 1. Zhengzhou Machinery Institute, Zhengzhou 450001, China; 2. Materials Science and Engineering College, Zhengzhou University, Zhengzhou 450002, China) |
| |
| Abstract: | By observing the micro structure with optical microscope, analyzing the phase composition with SEM and X-ray diffraction, and by testing Rockwell hardness, impact toughness and wear resistance, the influence of tungsten content on the microstructure and properties of hi-Cr cast irons was investigated. The results showed that the as-cast microstructure of W-containing hi-Cr cast iron consist of martensite＋austenite ＋carbide; the tungsten distributed uniformly in both the carbide and matrix; when w（W）was of 1%, hardness of the hi-Cr cast iron was of 58.75 HRC, its impact toughness was of 11.18 J/cm2; when w（W） reached 3%, the impact toughness of hi-Cr cast iron decreased obviously. When w（W） increased in the range 0~ 3%, wear resistance was improved continuously. |
| |
| Keywords: | W |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
