| "针状"先共析铁素体形成及对钢丝性能的影响 |
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| 引用本文： | 刘礼华,蔡磊,赵敏,杨恒,谢超英. "针状"先共析铁素体形成及对钢丝性能的影响[J]. 材料科学与工艺, 2005, 13(6): 659-661,664 |
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| 作者姓名： | 刘礼华 蔡磊 赵敏 杨恒 谢超英 |
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| 作者单位： | 1. 江苏法尔胜技术开发中心,江苏,江阴,214433
2. 上海交通大学,材料与工程学院教育部高温材料与高温测试开放试验室,上海,200030 |
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| 摘 要： | 运用膨胀法及显微组织观察分析了35#钢连续加热和冷却过程中相变特点,讨论了经正火处理的中碳钢组织中出现一定量的"针状"先共析铁素体形成原因.通过对正火处理的35#钢丝室温拉伸变形行为测试与分析,发现其呈现两个阶段屈服变形行为,两次屈服分别对应于先共析铁素体与珠光体塑性屈服.
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| 关 键 词： | " 针状" 先共析铁素体 35#钢丝性能 相变 |
| 文章编号： | 1005-0299（2005）06-0659-03 |
| 收稿时间： | 2003-12-22 |
| 修稿时间： | 2003-12-22 |
Formation of needle like proeutectiod ferrite and its influence on medium carbon steel wire properties |
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| LIU LIHUA,CAI Lei,ZHAO Min,YANG Heng,XIE Chao-ying. Formation of needle like proeutectiod ferrite and its influence on medium carbon steel wire properties[J]. Materials Science and Technology, 2005, 13(6): 659-661,664 |
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| Authors: | LIU LIHUA CAI Lei ZHAO Min YANG Heng XIE Chao-ying |
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| Abstract: | Phase transformations in the cooling process of medium 35# carbon steel after continuously heating have been investigated by a dilatometer and microstructure observation. The formation of needle like proeutectiod ferrite in the medium carbon normalized structure has been discussed. The tensile behavior of 35# steel after continuous heating and cooling treatment has been analyzed. Two yield stages appeared which correspond to the yield processes of proeutectiod ferrite and pearlite, respectively. |
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| Keywords: | needle like proeutectiod ferrite mechanical property of 35# carbon steel phase transformation |
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