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| 铝含量对Fe-Cr-B-Al合金组织性能影响的研究 | |
| 引用本文： | 于震,符寒光,蒋业华,周荣,雷永平,岑启宏,郭红星.铝含量对Fe-Cr-B-Al合金组织性能影响的研究[J].中国铸造装备与技术,2012(4):40-44. |
| 作者姓名： | 于震 符寒光 蒋业华 周荣 雷永平 岑启宏 郭红星 |
| 作者单位： | 1. 北京工业大学,北京,100022 2. 昆明理工大学,云南昆明,650093 3. 云南昆钢重型装备制造集团有限公司,云南昆明,650501 |
| 基金项目： | 北京市教委科研项目(PXM2012-014204-00-000136、PXM2012-014204-00-000156);云南省院省校科技合作专项(2010AD012);国家自然科学基金(51054008)的资助 |
| 摘 要： | 实验结果表明,不含铝元素的Fe-Cr-B合金铸态组织主要有马氏体、残余奥氏体和不同类型硼碳化合物组成,硬度超过65HRC。铝加入量不超过1.0%时,合金硬度变化不明显,物相组成也未出现变化。加铝量达到1.5%时,基体中出现了铁素体,合金硬度急剧下降。随铝含量的增多,铁素体在基体中所占比例越来越高,硬度逐渐下降但变化不大。 |
| 关 键 词： | Fe-Cr-B-Al合金 铝含量 凝固组织 铁素体 力学性能 |
Effect of Aluminum Content on Solidification Microstructure and Properties of Fe-Cr-B-Al Alloy |
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| YU Zhen , FU HanGuang , JIANG YeHua , ZHOU Rong , LEI YongPing , CEN QiHong , GUO HongXing.Effect of Aluminum Content on Solidification Microstructure and Properties of Fe-Cr-B-Al Alloy[J].China Foundry Machinery & Technology,2012(4):40-44. | |
| Authors: | YU Zhen FU HanGuang JIANG YeHua ZHOU Rong LEI YongPing CEN QiHong GUO HongXing |
| Affiliation: | 1.Beijing University of Technology, Beijing 100124, Beijing China; 2.Kunming University of Science and Technology,Kunming 650093, Yunnan China; 3.Yunnan Kun-Steel Heavy Equipment Manufacturing Group Co.Ltd., Kunming 650501, Yunnan China) |
| Abstract: | The results indicated that with hardness over 65 HRC the as-cast microstructure of the aluminium- free sample consisted of martensite, residual austenite and varieties of boron and carbon compound. With a small amount of aluminium element （Al ≤ 1.0%） added, the phase composition had no significant change nor the hardness of the alloy. While the concentration of aluminium reached 1.5%, ferrite appeared in the matrix of Fe-Cr-B-Al alloy with a sharply decrease of hardness. The proportion of ferrite in the matrix went up along with increasing aluminium concentration and the hardness of alloy decreased gradually though without sharply change. |
| Keywords: | Fe-Cr-B-Al alloy Aluminium content Solidification microstructure Ferrite Mechanics properties |
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