A STUDY OF THE EFFECT OF ANNEALING TEMPERATURE AFTER DEFORMATION MACHINING ON THE MECHANICAL PROPERTY AND STRUCTURE OF THE MOLYBDENUM
115 viewsKeywords:
Powder metallurgy; Molybdenum; Forming processes; Heat treatmentAbstract
In this paper, the results of a study on the effect of annealing temperature on the structure and mechanical properties of molybdenum materials made by the powder metallurgy method are presented. The results of experimental studies have shown the optimal annealing temperature range for molybdenum materials, showing the change in particle size and particle shape when affected by temperature. Thereby, a heat treatment technology mode after deformation machining for molybdenum powder materials and their alloy groups is proposed. The EDX results confirm the resistance to oxidation of the surface of the Mo sample when sintered in a hydrogen atmosphere.
References
[1]. A.H. Зеклиман, Б .Г. Коршунов, “Металлургия редких металлов,” Металлургия (1991), 432 c.
[2]. К. Агте, Вацек, “Вольфрам и молибден,” Энергия (1964), 455 c.
[3]. W. Donghui, Y. Xiaobo, L. Zhongkui, et al, “Progress of research and applications for Mo metal and its alloys,” Rare Metals Lett (2006), 25(12), pp.1–7.
[4]. А.Н. Шаповал, С.М. Горбатюк, “Интенсивные процессы обработки давлением вольфрама и молибдена,” Руда и металлы (2006), 353 c.
[5]. M. Xiao, F. Li, H. Xie, Y. Wang, “Characterization of strengthening mechanism and hot deformation behavior of powder metallurgy molybdenum,” Materials and Design Vol. 34, (2012), pp.112-119.
[6]. P Schade, L Bartha, “Deformation and properties of PM molybdenum and Tungsten”, Int J Refract Metal Hard Mater 2002, 20 (4), pp. 259–260.
[7]. Г.A. Либенсон, “Производство порошковых изделий,” Металлургия (1990), 236 с.
[8]. H.И. Корнеева, Б.Г. Арабея, “Производство изделий из тугоплавких металлов,” Мир (1968), 433 c.
[9]. M. Xiao, F. Li, H. Xie, Y. Wang, “Characterization of strengthening mechanism and hot deformation behavior of powder metallurgy molybdenum,” Materials and Design Vol. 34, (2012), pp.112-119.
[10]. R. Burman, “Properties and Applications of Molybdenum,” In STP849-EB Refractory Metals and Their Industrial Applications, ed. R. Smallwood, West Conshohocken, PA: ASTM International (1984), pp. 3-17.
[11]. Nguyễn Huynh, Nguyễn Xuân Phương, Lê Hải Ninh, Nguyễn Văn Minh, Lã Đức Tuấn, Vũ Tuấn Linh. “Nghiên cứu công nghệ nâng cao cơ tính và mật độ của các chi tiết chế tạo từ bột molipđen,” Tạp chí Nghiên cứu KH&CN Quân sự, (2020) Số 68, Tr. 129 – 135.
