EFFECTS OF Cr AND Nb ON MICROSTRUCTURES AND MECHANICAL PROPERTIES OF Fe_3Al ALLOYS

Abstract

Abstract: The effects of Cr and Nb on tensile properties at room and elevated temperatures and also on the microstructure have been investigated.An improvement in ductiliy plasicity and the cleavage strength of Fe_3AI may result from adding Cr;the improvement is more pronounced at over 400℃.The formation of Fe_2Nb containing A1 precipitates in the Fe_3AI+Nb alloy provide significant strengthening effect.Additions of Cr and Nb in Fe_3AI can cause a signifi- cant improvement in the yield strength at 550℃.

Key words: intermetallic compound, Fe_3Al alloy, mechanical properties, Cr, Nb

SUN Chao GUO Jianting TAN Minghui LI Hui WANG Shuhe Institute of Metal Research,Academia Sinica,Shenyang,China professor,Institute of Metal Research,Academia Sinica,Shenyang 110015,China. EFFECTS OF Cr AND Nb ON MICROSTRUCTURES AND MECHANICAL PROPERTIES OF Fe_3Al ALLOYS[J]. Acta Metallurgica Sinica (English Letters), 1993, 6(3): 157-160.

[1]	L. B. Tong, J. H. Chu, D. N. Zou, Q. Sun, S. Kamado, H. G. Brokmeier, M. Y. Zheng. Simultaneously Enhanced Mechanical Properties and Damping Capacities of ZK60 Mg Alloys Processed by Multi-Directional Forging [J]. Acta Metallurgica Sinica (English Letters), 2021, 34(2): 265-277.
[2]	Chun-Hua Ma, Fu-Sheng Pan, Ding-Fei Zhang, Ai-Tao Tang, Zhi-Wen Lu. Effects of Sb Addition on Microstructural Evolution and Mechanical Properties of Mg-9Al-5Sn Alloy [J]. Acta Metallurgica Sinica (English Letters), 2021, 34(2): 278-288.
[3]	Ce Zheng, Shuai-Feng Chen, Rui-Xue Wang, Shi-Hong Zhang, Ming Cheng. Effect of Hydrostatic Pressure on LPSO Kinking and Microstructure Evolution of Mg-11Gd-4Y-2Zn-0.5Zr Alloy [J]. Acta Metallurgica Sinica (English Letters), 2021, 34(2): 248-264.
[4]	Zongye Ding, Naifang Zhang, Liao Yu, Wenquan Lu, Jianguo Li, Qiaodan Hu. Recent Progress in Metallurgical Bonding Mechanisms at the Liquid/Solid Interface of Dissimilar Metals Investigated via in situ X-ray Imaging Technologies [J]. Acta Metallurgica Sinica (English Letters), 2021, 34(2): 145-168.
[5]	Lin-Yue Jia, Wen-Bo Du, Jin-Long Fu, Zhao-Hui Wang, Ke Liu, Shu-Bo Li, Xian Du. Obtaining Ultra-High Strength and Ductility in a Mg-Gd-Er-Zn-Zr Alloy via Extrusion, Pre-deformation and Two-Stage Aging [J]. Acta Metallurgica Sinica (English Letters), 2021, 34(1): 39-44.
[6]	Jiaqi Hu, Qite Li, Hong Gao. Influence of Twinning Texture on the Corrosion Fatigue Behavior of Extruded Magnesium Alloys [J]. Acta Metallurgica Sinica (English Letters), 2021, 34(1): 65-76.
[7]	Hua-Ping Tang, Qu-Dong Wang, Colin Luo, Chuan Lei, Tian-Wen Liu, Zhong-Yang Li, Kui Wang, Hai-Yan Jiang, Wen-Jiang Ding. Effects of Solution Treatment on the Microstructure, Tensile Properties, and Impact Toughness of an Al-5.0Mg-3.0Zn-1.0Cu Cast Alloy [J]. Acta Metallurgica Sinica (English Letters), 2021, 34(1): 98-110.
[8]	Dong-Dong Gu, Jian Peng, Jia-Wen Wang, Zheng-Tao Liu, Fu-Sheng Pan. Effect of Mn Modification on the Corrosion Susceptibility of Mg-Mn Alloys by Magnesium Scrap [J]. Acta Metallurgica Sinica (English Letters), 2021, 34(1): 1-11.
[9]	Meichen Liang, Hao Zhang, Lifeng Zhang, Peng Xue, Dingrui Ni, Weizhen Wang, Zongyi Ma, Hengqiang Ye, Zhiqing Yang. Evolution of Quasicrystals and Long-Period Stacking Ordered Structures During Severe Plastic Deformation and Mixing of Dissimilar Mg Alloys Upon Friction Stir Welding [J]. Acta Metallurgica Sinica (English Letters), 2021, 34(1): 12-24.
[10]	Jinglin Liu, Qi Song, Lihui Song, Shude Ji, Mingshen Li, Zhen Jia, Kang Yang. A Novel Friction Stir Spot Riveting of Al/Cu Dissimilar Materials [J]. Acta Metallurgica Sinica (English Letters), 2021, 34(1): 135-144.
[11]	Xi Zhao, Fa-Fa Yan, Zhi-Min Zhang, Peng-Cheng Gao, Shu-Chang Li. Influence of Heat Treatment on Precipitation Behavior and Mechanical Properties of Extruded AZ80 Magnesium Alloy [J]. Acta Metallurgica Sinica (English Letters), 2021, 34(1): 54-64.
[12]	Tao Liu, Yuejiao Chen, Libao Chen. 3D Printing Engineered Multi-porous Cu Microelectrodes with In Situ Electro-Oxidation Growth of CuO Nanosheets for Long Cycle, High Capacity and Large Rate Supercapacitors [J]. Acta Metallurgica Sinica (English Letters), 2021, 34(1): 85-97.
[13]	Yuanyuan Liu, Zhongmin Lang, Jinlong Cui, Shengli An. Performance of Nb_0.8Zr_0.2 Layer-Modified AISI430 Stainless Steel as Bipolar Plates for Direct Formic Acid Fuel Cells [J]. Acta Metallurgica Sinica (English Letters), 2021, 34(1): 77-84.
[14]	Chao-Yue Zhao, Xian-Hua Chen, Peng Peng, Teng Tu, Andrej Atrens, Fu-Sheng Pan. Microstructures and Mechanical Properties of Mg-xAl-1Sn-0.3Mn (x = 1, 3, 5) Alloy Sheets [J]. Acta Metallurgica Sinica (English Letters), 2020, 33(9): 1217-1225.
[15]	Tianbo Zhao, Yutaka S. Sato, Hiroyuki Kokawa, Kazuhiro Ito. Predicting Tensile Properties of Friction-Stir-Welded 6063 Aluminum with Experimentally Measured Welding Heat Input [J]. Acta Metallurgica Sinica (English Letters), 2020, 33(9): 1235-1242.

EFFECTS OF Cr AND Nb ON MICROSTRUCTURES AND MECHANICAL PROPERTIES OF Fe_3Al ALLOYS

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments