| 残余元素锡、锑对34CrNi3Mo钢冲击韧性的影响及稀土镧的改善作用 |
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| 引用本文： | 严春莲,王福明,魏利娟,傅强,吴承建.残余元素锡、锑对34CrNi3Mo钢冲击韧性的影响及稀土镧的改善作用[J].北京科技大学学报,2004,26(3):277-281. |
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| 作者姓名： | 严春莲 王福明 魏利娟 傅强 吴承建 |
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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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| 摘 要： | 利用JB-30B型冲击试验机研究了不同含量的残余元素锡、锑及稀土镧对低氧、低硫的34CrNi3Mo钢冲击韧性的影响;采用sEM及EDS手段研究了稀土镧对不同锡、锑含量钢的断裂方式的影响以及在钢中形成化合物的情形.结果表明:稀土金属可以明显改善低氧、低硫钢中残余元素对钢性能的危害;镧可与钢中的残余元素作用形成复合相且分布均匀.
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| 关 键 词： | 残余元素 稀土 冲击韧性 残余元素 冲击韧性 影响 稀土镧 改善作用 Containing Steel Impact Toughness Lanthanum Improvement 分布均匀 复合相 元素作用 钢性能 元素对 低硫钢 稀土金属 结果 化合物 断裂方式 |
| 修稿时间： | 2003年9月10日 |
Improvement of Lanthanum on Impact Toughness of 34CrNi3Mo Steel Containing Sn, Sb Residual Elements |
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| YAN Chunlian,WANG Fuming,WEI Lijuan,FU Qiang,WU Chengjian Metallurgical and Ecological Engineering School,University of Science and Technology Beijing,Beijing ,China.Improvement of Lanthanum on Impact Toughness of 34CrNi3Mo Steel Containing Sn, Sb Residual Elements[J].Journal of University of Science and Technology Beijing,2004,26(3):277-281. |
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| Authors: | YAN Chunlian WANG Fuming WEI Lijuan FU Qiang WU Chengjian Metallurgical and Ecological Engineering School University of Science and Technology Beijing Beijing China |
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| Institution: | YAN Chunlian,WANG Fuming,WEI Lijuan,FU Qiang,WU Chengjian Metallurgical and Ecological Engineering School,University of Science and Technology Beijing,Beijing 100083,China |
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| Abstract: | The effect of different residual element contents of tin and antimony and rare earth element lantha-
num on the impact toughness of 34CrNi3Mo steel with low oxygen and sulfur contents was investigated with
JB-30B impact test machine. SEM and EDS were used to study lanthanum effect on the fracture mode of the steel
with different tin and antimony contents and the rare earth inclusions. Results show that rare earth metal lanthanum
may decrease remarkably the harm of residual elements on the toughness of the steel and combine with residual ele-
ments in the steel to form La-Sb intermetallic compound and a little amount of La-Sn intermetallic compound, pre-
senting orderly distribution. |
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| Keywords: | residual element rare earth metal impact toughness |
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