| 显微组织对管线钢(X70)DWTT性能的影响 |
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| 引用本文： | 张爱梅,陈勇,邱双全. 显微组织对管线钢(X70)DWTT性能的影响[J]. 新疆钢铁, 2010, 0(1): 8-10 |
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| 作者姓名： | 张爱梅 陈勇 邱双全 |
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| 作者单位： | 宝钢集团八钢公司制造管理部,乌鲁木齐,830022 |
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| 摘 要： | 通过对X70钢DWTT断口纤维率差别较大的两类试样进行断口形貌和组织对比分析,结果表明:断口纤维率存在差别的原因是带状组织、组织类型的差异。要提高X70钢的断口纤维率,需获得以针状铁素体为主的金相组织,提高组织的均匀性,避免成分偏析。
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| 关 键 词： | 管线钢 DWTT 带状组织 针状铁素体 |
Influences of Microstructure to DWTT Properties of X70 Pipeline Steel |
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| ZHANG Ai-mei,CHEN Yong,QIU Shuang-quan. Influences of Microstructure to DWTT Properties of X70 Pipeline Steel[J]. Xinjiang Iron and Steel, 2010, 0(1): 8-10 |
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| Authors: | ZHANG Ai-mei CHEN Yong QIU Shuang-quan |
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| Affiliation: | ZHANG Ai-mei,CHEN Yong,QIU Shuang-quan(Manufacturing Management Department,Bayi Iron&Steel Co.,Baosteel Group) |
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| Abstract: | The fracture morphology and metallographic structure of X70 pipeline steel samples with different DWTT fracture fibre ratios were investigated.The results showed that the difference of fracture fibre ratio for two kinds of samples was caused by banded structure and different metallographic structure.In order to increase the fracture fibre ratio,enhancing the quantity of acicular ferrite,raising the even of the microstruture and avoiding composition segregation. |
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| Keywords: | DWTT |
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