[1]姚正军,薛烽.钼和铬的添加对Fe3Al基合金力学性能的影响[J].东南大学学报(自然科学版),2000,30(5):73-77.[doi:10.3969/j.issn.1001-0505.2000.05.017]
 Yao Zhengjun,Xue Feng.Effect of Molybdenum and Chromium Additions on the Mechanical Properties of Fe3Al-Based Alloys[J].Journal of Southeast University (Natural Science Edition),2000,30(5):73-77.[doi:10.3969/j.issn.1001-0505.2000.05.017]
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钼和铬的添加对Fe3Al基合金力学性能的影响()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
30
期数:
2000年第5期
页码:
73-77
栏目:
材料科学与工程
出版日期:
2000-09-20

文章信息/Info

Title:
Effect of Molybdenum and Chromium Additions on the Mechanical Properties of Fe3Al-Based Alloys
作者:
姚正军1 薛烽2
1 南京航空航天大学材料系,南京 210016; 2 东南大学材料科学与工程系, 南京 210096
Author(s):
Yao Zhengjun1 Xue Feng2
1 Department of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016
2 Department of Material Science and Engineering,Southeast University, Nanjing 210096
关键词:
Fe3Al 力学性能
Keywords:
Fe3Al Cr Mo mechanical properties
分类号:
TG113
DOI:
10.3969/j.issn.1001-0505.2000.05.017
摘要:
研究了Mo和Cr的复合添加对Fe3Al基合金室温和600 ℃高温下的力学性能的影响.结果表明将Cr和Mo一起加入到Fe3Al基合金中,可以明显提高其在600 ℃下的屈服强度和蠕变寿命; 添加Cr到Fe3Al中会降低Mo的固溶度; 在含有1%Mo以上的Fe-28Al-(2~5)Cr合金中形成了具有复杂成分的沉淀相; 随着加入到Fe-28Al-(2~5)Cr合金中Mo含量的增加,合金的断裂模式从穿晶解理与沿晶失效的混合模式逐渐变为完全的穿晶解理
Abstract:
The effects of combined additions of molybdenum and chromium on mechanical properties of Fe3Al-based alloys at ambient temperature and high temperature of 600 ℃ have been investigated. A combined addition of molybdenum and chromium to Fe3Al-based alloys results in a significant improvements of yield strength and creep rupture life at the temperature of 600 ℃. The chromium addition to Fe3Al-based alloys decreases the solubility of molybdenum. Precipitates with complex composition form in the Fe-28Al-(2-5)Cr alloys which containing more than 1% molybdenum. With the increase of molybdenum addition to the Fe-28Al-(2-5)Cr alloys, the fracture mode changes from a mixed one of transgranular cleavage and intergranular failure to entire transgranular cleavage.

参考文献/References:

[1] Mckamey C G,Devan J H,Tortorell P F,et al,A review of recent developments in Fe3Al-based alloys.J Mater Res,1991,6(8):1779~1805
[2] Sikka V K,Ductility enhancement of iron-aluminide alloy.SAMPE Quarterly,1991,22(4):2~10
[3] Mckamey C G,Horton J A.The effect of molybdenum addition on properties of iron-aluminides.Metall Trans,1989,20A:751~757
[4] Mckamey C G,Maziasy P J,Jones J W.Effect of additions of molybdenum or niobium on creep-rupture properties of Fe3Al.J Mater Res,1992,7(8):2089~2105
[5] Mckamey C G,Horton J A,Liu C T.Effect of chromium on properties of Fe3Al.J Mater Res,1989,5:1156~1163
[6] Knibloe J R,Wright R N.Elevated temperature behavior of Fe3Al with chromium additions.Mat Sci Eng,1992,A153:382~386
[7] 孙扬善,郭军,张力宁,等.Ce和Cr对Fe3Al室温力学性能的影响.金属学报,1991,27(4):257~262
[8] Sun Yangshan,Yao Zhengjun,Zhang Zhonghua.Mechanical properties of Fe3Al-based alloys with cerium addition.Scripta Metallurgical et Materialia,1995,33(5):811~817

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备注/Memo

备注/Memo:
第一作者:男,1968年生,硕士,讲师.
更新日期/Last Update: 2000-09-20