| 工艺参数对X100热煨弯管组织和性能的影响 |
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| 引用本文： | 田晨超,张骁勇,高惠临,刘迎来.工艺参数对X100热煨弯管组织和性能的影响[J].焊管,2012,35(4):15-19. |
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| 作者姓名： | 田晨超 张骁勇 高惠临 刘迎来 |
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| 作者单位： | 1. 西安石油大学材料科学与工程学院,西安,710065
2. 中国石油集团石油管工程技术研究院,西安,710065 |
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| 基金项目： | 国家自然科学基金，陕西省教育厅项目 |
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| 摘 要： | 采用热模拟试验、力学性能测试技术及显微分析方法研究了加热温度和冷却方式对X100热煨弯管组织和性能的影响规律。结果表明:在880℃的加热温度和10%NaCl溶液冷却工艺参数下,试验钢的显微组织为针状铁素体+少量板条马氏体,因而可使试验钢获得较好的强韧性配合。随着加热温度的升高,试验钢的强韧性呈下降趋势。10%NaCl溶液冷却工艺下有较好的强韧性,空冷方式下的强韧性达不到相应钢级的技术要求,这主要是由于显微组织中多边形铁素体及珠光体的出现所致。
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| 关 键 词： | 加热温度 冷却方式 热煨弯管 组织 性能 |
Effects of Process Parameters on Microstructure and Properties of X100 Hot-bending Bends |
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| TIAN Chen-chao
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ZHANG Xiao-yong
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GAO Hui-lin
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LIU Ying-lai.Effects of Process Parameters on Microstructure and Properties of X100 Hot-bending Bends[J].Welded Pipe and Tube,2012,35(4):15-19. |
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| Authors: | TIAN Chen-chao ZHANG Xiao-yong GAO Hui-lin LIU Ying-lai |
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| Affiliation: | 1.School of Materials Science and Engineering,Xi ＇an Shiyou University ,Xi ＇an 710065, China; 2.CNPC Tubular Goods Research Center,Xi＇an 710065 ,China) |
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| Abstract: | The effects of different heating temperatures and cooling methods on microstructure and properties of XIO0 hot-bending bends were investigated through thermal simulation test,mechanical property test and microscopic analysis method.The results showed that under the 880 ℃ heating temperature and by 10%NaCl solution cooling,the microstructure of the experimental steel are acicular ferrite and a small amount of lath martensite,so that a better combination of strength and toughness can he obtained.The strength and toughness decrease with heating temperature increasing;while the strength and toughness are perfect under cooling process by 10%NaCl solution.The strength and toughness can not achieve technical requirements of the corresponding steel grade by air cooling,which occurred in miscrosturcture from polygonal ferrite and pearlite. |
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| Keywords: | heating temperature cooling method hot-bending bend microstructure property |
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