| Q345GJC-Z15钢种Z向不合原因分析 |
| |
| 引用本文： | 袁永旗,高照海,于飒,李忠波. Q345GJC-Z15钢种Z向不合原因分析[J]. 山西冶金, 2010, 33(6): 9-10,67 |
| |
| 作者姓名： | 袁永旗 高照海 于飒 李忠波 |
| |
| 作者单位： | 南阳汉冶特钢有限责任公司,河南,南阳,474500;南阳汉冶特钢有限责任公司,河南,南阳,474500;南阳汉冶特钢有限责任公司,河南,南阳,474500;南阳汉冶特钢有限责任公司,河南,南阳,474500 |
| |
| 摘 要： | 针对发生脆性断裂的钢板厚度拉伸断口进行电镜、金相分析,发现断裂处存在大量夹杂物聚集,经能谱分析主要是Nb、Ti的碳(氮)化物、MnS、Al和Ca的氧化物,在冶炼过程产生的脱氧产物及铸坯凝固过程中产生偏析,这些夹杂物是引起该钢种厚度拉伸脆性断裂的原因。
|
| 关 键 词： | 厚度拉伸 中心偏析 断裂 |
Analysis of Disqualification Causes for Q345GJC-Z15 Steel in Thickness Direction |
| |
| YUAN Yongqi,GAO Zhaohai,YU Sa,LI Zhongbo. Analysis of Disqualification Causes for Q345GJC-Z15 Steel in Thickness Direction[J]. Shanxi Metallurgy, 2010, 33(6): 9-10,67 |
| |
| Authors: | YUAN Yongqi GAO Zhaohai YU Sa LI Zhongbo |
| |
| Affiliation: | (Nanyang Hanye Special Iron and Steel Co.,Ltd.,Nanyang,474500 China) |
| |
| Abstract: | Aim at analyzing the tensile fracture in thickness direction where brittle fracture occurred by SEM and optical metallography,a number of substances in the fracture were found.By EDAX analysis shows that mainly Nb carbide（nitride）,Ti carbide（nitride）,MnS oxide,Al oxide,Ca oxide during the occurred segrgation in smelting process and the segregation during the solidification of casting slab.These inclusions cause brittle fracture of Q345GJC-Z15 steel thickness direction. |
| |
| Keywords: | thickness tension centerline segregation fracture |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
