INFLUENCE OF Al ON DUCTILITY IMPROVEMENT BY B IN Ni_3Al ALLOYS

Abstract

Abstract: The “order-disorder” model was adopted to calculate the lattice vacancies related to the com- position change in Ni_3Al alloys.A great deal of vacancies,i.e.,the non-stoichiometric vacan- cies,may exist in the Ni_3Al alloys containing Al over stoichiometry,i.e.25 at.-%.This was confirmed by the positron annihilation technique.Therefore,the influence of Al content on the enhancing behaviour of B towards the ductility of Ni_3Al alloys can be understood by the interaction of non-stoiehiometric vacancies and B atoms.

Key words: Intermetallic compounds, Ni_3Al, Ductility mechanism

YANG Wenying LU Fanxiu ZHANG Shouhua University of Science and Technology Beijing,Beijing,China Department of Materials Science and Engineering,University of Science and Technology Beijing,Beijing,100083,China. INFLUENCE OF Al ON DUCTILITY IMPROVEMENT BY B IN Ni_3Al ALLOYS[J]. Acta Metallurgica Sinica (English Letters), 1991, 4(2): 147-150.

[1]	Weize Lv, Guowei Zhang, Heqian Song, Dan Zhang, Shiyuan Liu, Hong Xu. Effect of Rotating Magnetic Field on the Microstructure and Shear Property of Al/Steel Bimetallic Composite by Compound Casting [J]. Acta Metallurgica Sinica (English Letters), 2025, 38(2): 276-286.
[2]	Xue Li, Qingzhen Zhao, Hao Su, Ji Chen, Chuansong Wu. Intermetallic Compounds Formation in Dissimilar Friction Stir Welding of Mg/Cu Alloys [J]. Acta Metallurgica Sinica (English Letters), 2024, 37(9): 1523-1532.
[3]	Quanzhen Li, Chengming Li, Xiaojing Wang, Shanshan Cai, Jubo Peng, Shujin Chen, Jiajun Wang, Xiaohong Yuan. Microstructure and Shear Properties Evolution of Minor Fe-Doped SAC/Cu Substrate Solder Joint under Isothermal Aging [J]. Acta Metallurgica Sinica (English Letters), 2024, 37(7): 1279-1290.
[4]	J.X. Tang, L. Shi, C.S. Wu, M.X. Wu, S. Gao. Microstructure and Mechanical Properties of Dissimilar Double-Side Friction Stir Welds Between Medium-Thick 6061-T6 Aluminum and Pure Copper Plates [J]. Acta Metallurgica Sinica (English Letters), 2022, 35(12): 2027-2046.
[5]	Zongye Ding, Qiaodan Hu, Fan Yang, Liao Yu, Tianxing Yang, Naifang Zhang, Wenquan Lu, Jingwei Yang, Jian Qiao, Jianguo Li. Unveiling the Growth Mechanism of Faceted Primary Al₂Cu with Complex Morphologies During Solidification [J]. Acta Metallurgica Sinica (English Letters), 2022, 35(1): 124-132.
[6]	H.R. Lin, Y. Z. Tian, S.J. Sun, Z.F. Zhang. Microstructural Evolution and Mechanical Properties of Laminated CuAl Composites Processed by Accumulative Roll-Bonding and Annealing [J]. Acta Metallurgica Sinica (English Letters), 2021, 34(7): 925-931.
[7]	Chunliang Yang, Chuansong Wu, Junjie Zhao. Numerical Prediction of Intermetallic Compounds Thickness in Friction Stir Welding of Dissimilar Aluminum/Magnesium Alloys [J]. Acta Metallurgica Sinica (English Letters), 2021, 34(10): 1375-1385.
[8]	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.
[9]	Si-Yu Sun, Qiao-Dan Hu, Wen-Quan Lu, Zong-Ye Ding, Ming-Qin Xu, Ming-Xu Xia, Jian-Guo Li. In situ Study on the Growth Behavior of Primary Al₃Ni Phase in Solidifying Al-Ni Alloy by Synchrotron Radiography [J]. Acta Metallurgica Sinica (English Letters), 2018, 31(6): 668-672.
[10]	Farhad Bakhtiari Argesi, Ali Shamsipur, Seyyed Ehsan Mirsalehi. Dissimilar Joining of Pure Copper to Aluminum Alloy via Friction Stir Welding [J]. Acta Metallurgica Sinica (English Letters), 2018, 31(11): 1183-1196.
[11]	Yu-Gang Miao, Guang-Yu Chen, Peng Zhang, Duan-Feng Han. Comparative Study of Bypass-Current MIG Welded-Brazed Aluminum/Galvanized Steel and Aluminum/Stainless Steel [J]. Acta Metallurgica Sinica (English Letters), 2017, 30(8): 721-730.
[12]	Shujun WANG, Guoliang QIN,Yuhu SU. Laser-MIG Arc Hybrid Brazing-Fusion Welding of Al Alloy to Galvanized Steel with Different Filler Metals [J]. Acta Metallurgica Sinica (English Letters), 2013, 26(2): 177-182.
[13]	D.G. Ren and X.S. Fan (Laboratory of Atomic Imaging of Solids, Institute of Metal Research, The Chinese Academy of Sciences,Shenyang 110015, China). THE EXPERIMENTAL STUDIES OF NiO CLUSTER FORMATION IN Ni_3Al ALLOYS BY AP-FIM [J]. Acta Metallurgica Sinica (English Letters), 2000, 13(6): 1159-1164.
[14]	B. N. Qian; J. L. Li; J. T. Guo and B. Z. Wei (1)Institute of Metal Research, The Chinese Academy of Sciences, Shenyang 110015, China 2)Shanghai University, Shanghai 200072, China). HAZ CRACKING AND HOT DUCTILITY OF Ni_3AI CONTAINING Zr ALLOY [J]. Acta Metallurgica Sinica (English Letters), 2000, 13(1): 94-97.
[15]	W. P. Liu; F. X. Zhai and C. H. Ding (Dept. of Materials Science and Engineering, Dalian Railway Institute, Dalian 116028, China). JOINING OF Ni_3Al BY PRESSURIZED COMBUSTION SYNTHESIS USING GLEEBLE 1500 TEST SIMULATOR [J]. Acta Metallurgica Sinica (English Letters), 2000, 13(1): 217-222.

INFLUENCE OF Al ON DUCTILITY IMPROVEMENT BY B IN Ni_3Al ALLOYS

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments