A HIGH PERFORMANCE DS CAST Ni_3Al BASE ALLOY FOR ADVANCED GAS TURBINE BLADES AND VANES

Abstract

Abstract: A high performance Ni-Al-Mo-B system cast Ni_3Al base alloy, named Alloy IC6, has been developed for advanced gas turbine blades and vanes. The alloy has high strength and ductility from room temperature to 1100℃ as well as excellent creep resistance over a wide temperature range of 760℃ to 1100℃ . The superior mechanical properties of this alloy.may be attributed to (1) solid solution hardening by the large amount of Mo addition , (2)second phase strengthening by γ-phase and other minor phases that precipitate in various temperature ranges, (3) rearrangement of γ-phase in the form of raft structure during creep deformation , (4) high-density misfit dislocation networks at the γ /γ' interfaces that form due to a high value ofγ /γ ' misfit .

Key words: Ni_3Al Alloy, microstructure, mechnical properties

HAN Yafang (Institute of Aeronautical Materials, Beijing, 100095, China)CHATURVEDIMC(University of Manitoba Winnipeg, Manitoba, Canada, R3T2N2). A HIGH PERFORMANCE DS CAST Ni_3Al BASE ALLOY FOR ADVANCED GAS TURBINE BLADES AND VANES[J]. Acta Metallurgica Sinica (English Letters), 1995, 8(z1): 497-502.

[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]	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.
[4]	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.
[5]	Dan-Yang Liu, Jin-Feng Li, Yong-Cheng Lin, Peng-Cheng Ma, Yong-Lai Chen, Xu-Hu Zhang, Rui-Feng Zhang. Cu/Li Ratio on the Microstructure Evolution and Corrosion Behaviors of Al-xCu-yLi-Mg Alloys [J]. Acta Metallurgica Sinica (English Letters), 2020, 33(9): 1201-1216.
[6]	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.
[7]	Xudong Du, Feng Wang, Zhi Wang, Xingxing Li, Zheng Liu, Pingli Mao. Hot Tearing Susceptibility of AXJ530 Alloy Under Low-Frequency Alternating Magnetic Field [J]. Acta Metallurgica Sinica (English Letters), 2020, 33(9): 1259-1270.
[8]	Qiuxin Nie, Hui Liang, Dongxu Qiao, Zhaoxin Qi, Zhiqiang Cao. Microstructures and Mechanical Properties of Multi-component Al_xCrFe₂Ni₂Mo_0.2 High-Entropy Alloys [J]. Acta Metallurgica Sinica (English Letters), 2020, 33(8): 1135-1144.
[9]	Chengbo Yang, Jing Zhang, Meng Li, Xuejian Liu. Soft-Magnetic High-Entropy AlCoFeMnNi Alloys with Dual-Phase Microstructures Induced by Annealing [J]. Acta Metallurgica Sinica (English Letters), 2020, 33(8): 1124-1134.
[10]	Yuan Yu, Peiying Shi, Kai Feng, Jiongjie Liu, Jun Cheng, Zhuhui Qiao, Jun Yang, Jinshan Li, Weimin Liu. Effects of Ti and Cu on the Microstructure Evolution of AlCoCrFeNi High-Entropy Alloy During Heat Treatment [J]. Acta Metallurgica Sinica (English Letters), 2020, 33(8): 1077-1090.
[11]	Hui Jiang, Tian-Dang Huang, Chao Su, Hong-Bin Zhang, Kai-Ming Han, Sheng-Xue Qin. Microstructure and Mechanical Behavior of CrFeNi₂V_0.5W_x (x = 0, 0.25) High-Entropy Alloys [J]. Acta Metallurgica Sinica (English Letters), 2020, 33(8): 1117-1123.
[12]	Ibrahim Ondicho, Bernard Alunda, Dicken Owino, Luke Otieno, Melody Chepkoech. Revealing a Transformation-Induced Plasticity (TRIP) Phenomenon in a Medium-Entropy Alloy [J]. Acta Metallurgica Sinica (English Letters), 2020, 33(8): 1159-1165.
[13]	Ren Li, Jing Ren, Guo-Jia Zhang, Jun-Yang He, Yi-Ping Lu, Tong-Min Wang, Ting-Ju Li. Novel (CoFe₂NiV_0.5Mo_0.2)_100-_xNb_x Eutectic High-Entropy Alloys with Excellent Combination of Mechanical and Corrosion Properties [J]. Acta Metallurgica Sinica (English Letters), 2020, 33(8): 1046-1056.
[14]	Xiaochao Liu, Yufeng Sun, Tomoya Nagira, Kohsaku Ushioda, Hidetoshi Fujii. Effect of Stacking Fault Energy on the Grain Structure Evolution of FCC Metals During Friction Stir Welding [J]. Acta Metallurgica Sinica (English Letters), 2020, 33(7): 1001-1012.
[15]	Yunhai Su, Xuewei Liang, Yunqi Liu, Zhiyong Dai. Effect of Ti Addition on the Microstructure and Property of FeAlCuCrNiMo_0.6 High-Entropy Alloy [J]. Acta Metallurgica Sinica (English Letters), 2020, 33(7): 957-967.

A HIGH PERFORMANCE DS CAST Ni_3Al BASE ALLOY FOR ADVANCED GAS TURBINE BLADES AND VANES

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments