Research Status of the Effect of Doping Methods on Microstructure and Mechanical Properties of Molybdenum Alloy
LI Shilei1,2, HU Ping1,2, DUAN Yi3, ZUO Yegai1,2, XING Hairui1,2, LI Hui1,2, DENG Jie1,2, FENG Pengfa4, WANG Kuaishe1,2, HU Boliang1,2
1 School of Metallurgy Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China 2 National and Local Joint Engineering Research Center for Functional Materials, Xi’an University of Architecture and Technology, Xi’an 710055, China 3 AVIC Qingan Group Co., Ltd., Xi’an 710077, China 4 Jinduicheng Molybdenum Group Co., Ltd., Xi’an 710077, China
Abstract: Silver-white metal molybdenum having high melting point, high strength, low creep rate, small expansion coefficient, excellent thermal conductivity and thermal shock resistance, and strong anti-wear and anti-corrosion properties, widely used in chemical industry, petroleum industry, metallurgical industry, aerospace industry and nuclear energy technology. Pure molybdenum is poorly plastic at room temperature, and it tends to produce grain boundary sliding at high temperatures, resulting in large deformation. The mechanical properties of pure molybdenum at high temperatures are greatly attenuated compared with those at room temperature, and pure molybdenum tends to produce large creep at high temperatures and the strength and hardness decrease significantly. These properties limit the extensive use of pure molybdenum as a structural material. In order to improve the application range of molybdenum metal and improve the strength and toughness of molybdenum metal in various use scenarios, a small amount of alloying elements are usually added to the molybdenum metal. The grain boundary embrittlement phase is removed by solid solution strengthening and dispersion strengthening of trace elements, and the molybdenum alloy can be strengthened as a reac-tant of the dispersed phase to improve the performance. The molybdenum alloys that have been developed under the joint exploration of scholars at home and abroad include Mo-Al2O3, Mo-La, TZM, TZC, etc. The common preparation method of molybdenum alloy is powder metallurgy method. Doping is the first step in the preparation process of molybdenum alloy. The selection of different kinds of doping methods will have different effects on the microstructure and properties of subsequent molybdenum alloy products. There are three commonly used doping methods in the preparation of molybdenum alloys by powder metallurgy: (1) a solid-solid (S-S) doping method in which molybdenum powder is mixed with alloy element powder; (2) a solid-liquid (S-L) doping method in which alloying element is dissolved and mixed into molybdenum (or molybdenum oxide) powder, and dried to be reduced; (3) a liquid-liquid (L-L) doping method for preparing a molybdenum alloy by drying and reducing a compound solution of molybdenum and alloying element. In recent years, domestic and foreign scholars hope to improve the microstructure of molybdenum alloy and improve the performance of molybdenum alloy by improving the doping mode of molybdenum alloy powder metallurgy. Studies have shown that the improvement of the doping mode will first improves the surface state of the alloy powder, making the particle size of the alloy powder finer and more uniform. Secondly, the sintered billet structure of the molybdenum alloy is more uniform, the crystal grains are finer, and the second phase particles are finer and more dispersed. Finally, the toughness of the molybdenum alloy is improved due to the presence of fine-grain strengthening and the mechanism of the second phase strengthening. In this paper, the researches on the microstructure and properties of molybdenum alloys by doping methods in recent years are reviewed,the effects of doping methods on the powder state, microhardness, relative density, microstructure, distribution of second phase and mechanical properties of various molybdenum alloys has been analyzed. Based on the existing research, it has made a constructive outlook for the development of future doping methods, and has important reference significance for the production of molybdenum alloy.
李世磊, 胡平, 段毅, 左烨盖, 邢海瑞, 李辉, 邓洁, 冯鹏发, 王快社, 胡卜亮. 掺杂方式对钼合金组织与力学性能影响的研究进展[J]. 材料导报, 2020, 34(9): 9132-9142.
LI Shilei, HU Ping, DUAN Yi, ZUO Yegai, XING Hairui, LI Hui, DENG Jie, FENG Pengfa, WANG Kuaishe, HU Boliang. Research Status of the Effect of Doping Methods on Microstructure and Mechanical Properties of Molybdenum Alloy. Materials Reports, 2020, 34(9): 9132-9142.
1 Sharma I G, Chakraborty S P, Suri A K. Journal of Alloys & Compounds,2005,393(1),122. 2 Cao W C, Wei S Z, Ren Y X. Rare Metals Letters,2006,25(8),29(in Chinese). 曹维成,刘静,任宜霞.稀有金属快报,2006,25(8),29. 3 Liu Q, Wei S Z, Xu L J. Rare Metals and Cemented Carbides,2011,39(4),50(in Chinese). 刘强,魏世忠,徐流杰.稀有金属与硬质合金,2011,39(4),50. 4 Huang Q, Li Q,Song J X,et al. Materials Review A: Review Papers,2009,23(11),38(in Chinese). 黄强,李青,宋尽霞,等.材料导报:综述篇,2009,23(11),38. 5 Yang J, Nie Z, Wang Y. Applied Surface Science,2003,215(1),87. 6 Yu W Q, Wen X Z, Cheng X M,et al. Rare Metals and Cemented Carbides,2002,30(3),33(in Chinese). 喻玮强,文先哲,陈响明,等.稀有金属与硬质合金,2002,30(3),33. 7 Xiao D H, Yue-Hui H E, Luo W H, et al. Transactions of Nonferrous Metals Society of China (English Edition),2009,19(6),1520. 8 Sun L, Jia C, Cao R, et al. International Journal of Refractory Metals & Hard Materials,2008,26(4),357. 9 Correa E O, Santos J N, Klein A N. International Journal of Refractory Metals & Hard Materials,2010,28(5),572. 10 Xiao D, Xiuxiu L I, Shen T, et al. Journal of Central South University,2015,46(1),81. 11 Zhang L, Chen S, Cheng X, et al. Transactions of Nonferrous Metals Society of China,2012,22(7),1680. 12 Kim H C, Shon 1 J, Yoon J K, et al. International Journal of Refractory Metals & Hard Materials,2006,24(6),427. 13 Iorio L E, Bewlay B P, Larsen M. International Journal of Refractory Metals & Hard Materials,2006,24(4),306. 14 Rong H, Peng Z, Ren X, et at. International Journal of Refractory Metals & Hard Materials,2011,29(6),733 15 Wang L, Sun J, Sun Y J, et al. Rare Metal Materials and Engineering,2007,36(10),1827(in Chinese). 王林,孙军,孙院军,等.稀有金属材料与工程,2007,36(10),1827. 16 Yang X, Tan H, Lin N, et al. International Journal of Refractory Metals & Hard Materials,2015,51,301. 17 Feng P F, Yang Q L, Dang X M, et al. Rare Metals,2015,34(11),1. 18 Cheng P M, Zhang G J, Zhang J Y, et al. Materials Science & Enginee-ring A,2015,640,320. 19 Zhang D D, Ni F, Xu L J, et al. Rare Metals and Cemented Carbides,2011,39(3),35(in Chinese). 张丹丹,倪锋,徐流杰,等.稀有金属与硬质合金,2011,39(3),35. 20 Wang S Q, Ni D Z. Rare Metal Materials and Engineering,1998(4),233(in Chinese). 王思清,倪德忠.稀有金属材料与工程,1998(4),233. 21 Ping H, Wang K, Fan Y, et al. Rare Metal Materials & Engineering,2014,43(6),1502. 22 Yang X, Tan H, Lin N, et al. International Journal of Refractory Metals & Hard Materials,2015,51,301. 23 Schulmeyer W V, Ortner H M. International Journal of Refractory Metals & Hard Materials,2002,20(4),261. 24 Liu G, Zhang G J, Jiang F, et al. Nature Materials,2013,12(4),344. 25 Hu P, Yang F, Deng J, et al. Journal of Alloys & Compounds,2017,711,64. 26 Zhou Y H, Hu P, Chang T, et al. Journal of Functional Materials,2018,49(1),26(in Chinese). 周宇航,胡平,常恬,等.功能材料,2018,49(1),26. 27 Central Iron & Steel Research Institute. Refractory Metal Fracture Analysis Map, Science Press,China,1978. 冶金工业部钢铁研究院.难熔金属断口分析图谱.科学出版社,1978. 28 Wang Z D, Zheng J P, Yang Q F, et al. Atomic Energy Science and Technology,2005,39(S1),42. 王振东,郑剑平,杨启法,等.原子能科学技术,2005,39(S1),42. 29 Luo J H, Wang L, Sun Y J. China Molybdenum Industry,2015(5),54(in Chinese). 罗建海,王林,孙院军.中国钼业,2015(5),54. 30 Sandim H R Z, Padilha A F, Randle V, et al. International Journal of Refractory Metals & Hard Materials,1999,17(6),431. 31 Olevsky E A. Materials Science & Engineering A,1998,23(2),41. 32 Wang Y, Wang D, Zhu W, et al. International Journal of Refractory Metals & Hard Materials,2012,31(3),152. 33 Zhang J, Zhou W, Zhou M, et al. Journal of Beijing Polytechnic University,2002,26(2),124. 34 Zhao J S. Base of dislocation, National Defense Industry Press,China,1989. 赵敬世.位错理论基础,国防工业出版社,1989. 35 Wang D Z, Liu X Y, Zhou M L. Powder Metallurgy Technology,2002,20(2),75(in Chinese). 王德志,刘心宇,周美玲.粉末冶金技术,2002,20(2),75. 36 Bandyopadhyay S N. Engineering Fracture Mechanics,1982,16(6),889. 37 He H C. Effect of doping methods on microstructure and properties of La-TZM alloy sheets. Master’s Thesis, Xi’an University of Architecture and Technology,2014(in Chinese). 何欢承.掺杂方式对La-TZM合金板材组织及性能影响研究.硕士学位论文,西安建筑科技大学,2014. 38 Mueller A J, Bianco R, Buckman R W. International Journal of Refractory Metals & Hard Materials,1999,18(4),205. 39 Iorio L E, Bewlay B P, Larsen M. Metallurgical & Materials Transactions A,2002,33(11),3349. 40 Iorio L E, Bewlay B P, Larsen M. International Journal of Refractory Metals & Hard Materials,2006,24(4),306. 41 Sturm D, Heilmaier M, Schneibel J H, et al. Materials Science & Engineering A,2007,463(1),107. 42 Duan S H, Zhang G S, Wei S Z, et al. Transactions of Materials & Heat Treatment,2011,32(12),29. 43 Zhang G J, Liu G, Sun Y J, et al. International Journal of Refractory Metals & Hard Materials,2009,27(1),173. 44 Feng P, Fu J, Zhao H, et al. Metal Powder Report,2016,71(6),437. 45 Siochi E J, Harrison J S. Mrs Bulletin,2015,40(10),829. 46 Suryanarayana C, Korth G E. Metals & Materials,1999,5(2),121. 47 Yoganarasimhan S R, Rao C N R. Transactions of the Faraday Society,1962,58(58),1579. 48 Wang J, Wang Y, Zhou M. Materials Science & Engineering B,2006,128(1-3),211. 49 Ha K F. The microscopic theory of mechanical properties of metals, Science Press,China,1983(in Chinese). 哈宽富.金属力学性能的微观理论,科学出版社,1983.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2020, Vol. 34 
