| 连铸温度和低倍组织对轮箍钢氢致开裂的影响 |
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| 引用本文： | 任学冲,武明,褚武扬,李金许,乔利杰,江波,陈刚,崔银会.连铸温度和低倍组织对轮箍钢氢致开裂的影响[J].金属学报,2007,43(2):149-153. |
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| 作者姓名： | 任学冲 武明 褚武扬 李金许 乔利杰 江波 陈刚 崔银会 |
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| 作者单位： | 1. 北京科技大学材料物理系,北京,100083
2. 马鞍山钢铁公司技术中心,马鞍山,432000 |
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| 摘 要： | 研究了轮箍钢低倍组织和连铸温度对白点敏感性、断裂韧性的影响.结果表明,连铸温度对白点敏感性有影响,低温涛坯(尾坯)的白点敏感性略高于高温铸坯(头坯).低倍组织对白点敏感性影响显著,柱状晶区的白点敏感性最低,等轴晶区的白点敏感性最高.但是,低倍组织和连铸温度对氢扩散和条件断裂韧性KIQ均没有影响.
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| 关 键 词： | 轮箍钢 低倍组织 连铸温度 氢致开裂 白点 连铸 温度 低倍组织 轮箍 氢致开裂 影响 STEEL CRACKING STRUCTURE MACRO TEMPERATURE CASTING 条件 氢扩散 等轴晶区 铸坯 高温 尾坯 低温 结果 |
| 文章编号： | 0412-1961（2007）02-0149-05 |
| 收稿时间： | 2006-04-24 |
| 修稿时间： | 2006-04-242006-09-18 |
EFFECT OF CASTING TEMPERATURE AND MACROSTRUCTURE ON HYDROGEN-INDUCED CRACKING OF TYRE |
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| REN Xuechong,WU Ming,CHU Wuyang,LI Jinxu,QIAO Lijie,JIANG Bo,CHEN Gang,CUI Yinhui.EFFECT OF CASTING TEMPERATURE AND MACROSTRUCTURE ON HYDROGEN-INDUCED CRACKING OF TYRE[J].Acta Metallurgica Sinica,2007,43(2):149-153. |
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| Authors: | REN Xuechong WU Ming CHU Wuyang LI Jinxu QIAO Lijie JIANG Bo CHEN Gang CUI Yinhui |
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| Abstract: | The effects of the macrostructure of tyre steel and continuous-casting temperature on hydrogen flaking and fracture toughness,K_(IQ),have been investigated.The results show that the continuous-casting temperature can influence the susceptibility to hydrogen flaking,for example,the susceptibility of the low temperature billet (end billet) is higher than that of the high temperature billet (head billet).In addition,there is an evident effect of macrostructure on the susceptibility to hydrogen flaking,which is the highest in the columnar grain zone and the lowest in the equiaxed grain zone.However,the hydrogen diffusivity,D_a,and fracture toughness,KIQ,are almost independent upon the macrostructure of tyre steel and also continuous-casting temperature. |
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| Keywords: | tyre steel macrostructure casting temperature hydrogen induced cracking flaking |
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