| 含Ti复合夹杂物对中碳非调质钢组织和力学性能的影响 |
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| 引用本文： | 杨占兵,王福明,宋波,王森. 含Ti复合夹杂物对中碳非调质钢组织和力学性能的影响[J]. 北京科技大学学报, 2007, 29(11): 1096-1100 |
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| 作者姓名： | 杨占兵 王福明 宋波 王森 |
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| 作者单位： | 北京科技大学冶金与生态工程学院,北京,100083 |
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| 基金项目： | 国家自然科学基金 , 高等学校博士学科点专项科研项目 |
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| 摘 要： | 利用扫描电镜和能谱仪研究了含Ti复合夹杂物对非调质钢组织细化的影响,测定了含Ti非调质钢的室温拉伸强度和冲击功,并观察了断口形貌.结果表明:Ti的复合夹杂物可以作为晶内铁素体形核核心,细化奥氏体晶粒;加Ti后冲击断口中延性形貌所占面积比例上升,在保持非调质钢强度的条件下使韧性提高约50%.
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| 关 键 词： | 非调质钢 含Ti复合夹杂物 晶内铁素体 韧性 复合夹杂物 中碳 非调质钢 钢组织细化 力学性能 影响 steel carbon medium mechanical properties microstructure inclusions complex 条件 钢强度 比例 面积 延性 冲击断口 晶粒 |
| 收稿时间： | 2006-07-22 |
| 修稿时间： | 2006-10-12 |
Effect of Ti-containing complex inclusions on the microstructure and mechanical properties of medium carbon non-quenched and tempered steel |
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| YANG Zhanbing,WANG Fuming,SONG Bo,WANG Sen. Effect of Ti-containing complex inclusions on the microstructure and mechanical properties of medium carbon non-quenched and tempered steel[J]. Journal of University of Science and Technology Beijing, 2007, 29(11): 1096-1100 |
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| Authors: | YANG Zhanbing WANG Fuming SONG Bo WANG Sen |
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| Abstract: | The effect of Ti-containing complex inclusions on the microstructure refinement of non-quenched and tempered steel was studied by using SEM and EDS. The room temperature tensile strength and absorbed-infracture energy of the tested steel were tested, and the fractography was observed. The results show that Ticontaining complex inclusions act as the nuclei for intra-granular ferrites and refine austenite grains, and with Ti added, the area proportion of ductile fracture is increased. The toughness of the studied steel is enhanced by about 50 % while keeping the same strength level. |
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| Keywords: | non-quenched and tempered steel Ti-containing complex inclusions intra-granular ferrite toughness |
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