Pt-Co-Mn合金组织结构及性能研究

doi:10.11896/cldb.21060215

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (9764KB)
Export: BibTeX | EndNote (RIS)

Abstract Four kinds of Pt-Co-Mn alloys were prepared by vacuum arc smelting. The microstructure, mechanical properties, magnetism, reflectivity and corrosion resistance of Pt-Co-Mn alloys were studied by X-ray diffractometer (XRD), metallographic microscope, microhardness tester, magnetism measuring instrument, spectrophotometer and electrochemical workstation. The results showed that the Pt-Co-Mn alloys were single phase solid solution with an average grain size of 200—300 μm. Co and Mn in solid solution were found to give a considerably higher strengthening effect than Co. The Vickers hardness of Pt-Co-Mn alloys varied from 162HV to 179HV, which was higher than that of Pt-5Co alloy. The magnetism of Pt-Co-Mn alloys could be eliminated by adding Mn to Pt-Co alloy at room temperature. In addition, Pt-2.0Co-2.0Mn alloy exhibited the lowest average susceptibility value of 1.45×10^-5 and the smoothest hysteresis loop, which showed the best degaussing effect. The average reflectance of Pt-Co-Mn alloy in the visible spectrum ranged from 54.5% to 57.8%, which indicated that the proportion of Co and Mn elements had little influence on the reflectance of the alloy. The proportion of Co and Mn had little influence on the reflectance of the alloy. The analyzed alloys exhibited a good corrosion resistance in artificial sweat. Furthermore, Pt-2.6Co-1.4Mn alloy had higher corrosion potential value of -0.032 V and lower corrosion current density value of 2.01 μA/cm². The obtained corrosion potential and corrosion current density led to the best corrosion resistance of Pt-2.6Co-1.4Mn alloy.

Key words： Pt-Co-Mn alloys microstructure Vickers hardness magnetism reflectivity corrosion resistance

Published: 25 May 2023 Online: 2023-05-23

CLC number:

TG146.3

Fund:Key Projects of Basic Research Plan of Yunnan Province (2019FA048), and the Materials Genetic Engineering Project of Yunnan Province (2019ZE001,202002AB080001-1-4).

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LUO Yuan
	WANG Xian
	ZHAO Jun
	HU Changyi
	ZHANG Dawei
	WEI Yan
	ZHANG Xuxiang
	CAI Hongzhong

Cite this article:

LUO Yuan,WANG Xian,ZHAO Jun, et al. Study on the Microstructure and Properties of Pt-Co-Mn Alloy[J]. Materials Reports, 2023, 37(10): 21060215-5.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.21060215 OR http://www.mater-rep.com/EN/Y2023/V37/I10/21060215

1 McDonald D. Platinum Metals Review, 1960, 4(1), 27.
2 Tan Q L, Que Z H. Platinum group metals, Metallurgical Industry Press, China, 1990, pp.5 (in Chinese).
谭庆麟, 阙振寰. 铂族金属, 冶金工业出版社, 1990, pp.5.
3 Ning Y T, Yang Z F, Wen F. Platinum, Metallurgical Industry Press, China, 2010, pp.7 (in Chinese).
宁远涛, 杨正芬, 文飞. 铂, 冶金工业出版社, 2010, pp.7.
4 Ning Y T, Ning Y N, Yang Q. Precious metal jewelry materials, Metallurgical Industry Press, China, 2013, pp.142 (in Chinese).
宁远涛, 宁奕楠, 杨倩. 贵金属珠宝饰品材料学, 冶金工业出版社, 2013, pp.142.
5 Biggs B T, Taylor S S, Van Der Lingen E. Platinum Metals Review, 2005, 49(1), 2.
6 Li X F. Nonferrous Metals(China), 2004, 56(3), 21 (in Chinese).
李小甫. 有色金属, 2004, 56(3), 21.
7 Yang X W. Materials Reports, 2003, 17(12), 22 (in Chinese).
扬兴无. 材料导报, 2003, 17(12), 22.
8 Klotz B U E, Drago T. Platinum Metals Review, 2011, 55(1), 20.
9 Miller D, Keraan T, Park-Ross P, et al. Platinum Metals Review, 2005, 49(3), 110.
10 Ainsley G. Platinum Metals Review, 1978, 22(33), 78.
11 Collings E W, Smith R D, Ho J C. Journal of the Less Common Metals, 1976, 46(2), 189.
12 Corti C W. Platinum Metals Review, 2011, 55(4), 246.
13 Okamoto H. Journal of Phase Equilibria and Diffusion, 2008, 29(5), 471.
14 Mehmood S, Klotz U E, Pottlacher G. Metallurgical and Materials Tran-sactions A, 2012, 43(13), 5029.
15 Li D X, Zhang Y L, Yuan H M. Material science of precious metals, Central South University of Technology Press, China, 1991, pp.208 (in Chinese).
黎鼎鑫, 张永俐, 袁弘鸣. 贵金属材料学, 中南工业大学出版社, 1991, pp.208.
16 Liu G L, Jing C. Acta Physica Sinica, 1999, 48(12), 2369 (in Chinese).
刘国磊, 敬超. 物理学报, 1999, 48(12), 2369.
17 Zhou G D, Duan L Y. Fundamentals of structural chemistry, Peking University Press, China, 2017, pp.297 (in Chinese).
周公度, 段连运. 结构化学基础, 北京大学出版社, 2017, pp.297.
18 Shi D K. Fundamentals of materials science, China Machine Press, China, 2019, pp.17 (in Chinese).
石德珂. 材料科学基础, 机械工业出版社, 2019, pp.17.
19 Zhao Q. Study on structure and mechanical properties of Pt-Ti-X(Zr、Hf) microalloy. Master's Thesis, Yunnan University, China, 2015 (in Chinese).
赵琼. Pt-Ti-X(Zr、Hf)微合金组织和力学性能研究. 硕士学位论文, 云南大学, 2015.
20 Ma Y, Yuan F P. Mechanics in Engineering, 2021, 43(2), 316 (in Chinese).
马彦, 袁福平. 力学与实践, 2021, 43(2), 316.
21 Yang X W, Li X F. Fiber Glass, 2003(4), 7 (in Chinese).
杨兴无, 李小甫. 玻璃纤维, 2003(4), 7.
22 Zhang F, Guo Y P, Zhou W M. Properties of materials, Shanghai Jiao Tong University Press, China, 2014, pp.318 (in Chinese).
张帆, 郭益平, 周伟敏. 材料性能学, 上海交通大学出版社, 2014, pp.318.
23 Deb P, Boone D H. Journal of Vacuum Science & Technology A Vacuum Surfaces & Films, 1985, 3(6), 2578.
24 Rapson W S. Gold Bulletin, 1996, 29(2), 61.
25 Jiang Y L, Wu Y S. Corrosion Science and Protection Technology, 2005, 17(3), 154 (in Chinese).
姜应律, 吴荫顺. 腐蚀科学与防护技术, 2005, 17(3), 154.
26 Tang Y, Chen B X. Chinese Journal of Tissue Engineering Research, 2014, 18(47), 7561 (in Chinese).
汤雅, 陈必新. 中国组织工程研究, 2014, 18(47), 7561.