Effect of Jet Grading Technology on the Properties and Structural Characteristics of Tungsten Products

Abstract:

Jet grading technology is an efficient process in different industries. In this research, tungsten powder with different particle size distribution was used as a raw material to produce tungsten products via isostatic pressing as well as sintering. The mechanism of jet grading and the morphology and particle size distribution of different precursors were analyzed. The results showed that jet grading technology had remarkable effect on tungsten powder classification. The appropriate grading treatment was helpful to the formation of tungsten products with high performance. After jet grading and the following process like pressing and sintering, the tungsten products with better properties were manufactured which was used fischer particle size of 3.0~3.5μm as the raw material. The obtained products’ density was 18.77g/cm³ and its hardness was 372.15HV_0.3.

• Periodical: Materials Science Forum (Volume 1035)
• Pages: 273-277
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1035.273
• Online since: June 2021
• Authors: Yu Qing Zhang*, Lu Yan Wang, Cao Bing Li, Shan Yu Liu
• Keywords: Densification, Isostatic Pressing, Jet Grading Technology, Pretreatment, Sintering, Tungsten Powder

References

[1] Yucheng Wu, Qingqing Hou, Laima Luo, Preparation of ultrafine-grained/nanostructured tungsten materials: An overview, Journal of Alloys and Compounds. 779(2019) 926–941.

DOI: 10.1016/j.jallcom.2018.11.279

[2] Kang Wang, Haitao Sun, Xiang Zan, Evolution of microstructure and texture of moderately warm-rolled pure tungsten during annealing at 1300℃, Journal of Nuclear Materials. 540(2020) 152412.

DOI: 10.1016/j.jnucmat.2020.152412

[3] Michael Duerrschnabel, Steffen Antusch, Birger Holtermann, Elucidating the microstructure of tungsten composite materials produced by powder injection molding, Nuclear Materials and Energy. (2020) 100766.

DOI: 10.1016/j.nme.2020.100766

[4] Ken Yoshida, Ina Lewinsky, Mogens Nielsen, Implantation mechanics of tungsten microneedles into peripheral nerve trunks, International Federation for Medical and Biological Engineering. 45(2007) 413-420.

DOI: 10.1007/s11517-007-0175-0

[5] JiteshVasavada, Harsh KumarNarula, SushilMishra, Development of novel Moving Wave Front image processing algorithm and microstructural quantification of Tungsten Heavy Alloy, Computational Materials Science. 170(2019) 109181.

DOI: 10.1016/j.commatsci.2019.109181

[6] Brady G.Butler, James D.Paramore, Jonathan P.Ligda, Mechanisms of deformation and ductility in tungsten – A review, International Journal of Refractory Metals and Hard Materials. 75(2018) 248-261.

DOI: 10.1016/j.ijrmhm.2018.04.021

[7] JinhanChen, KailunLi, YafeiWang. The effect of hot isostatic pressing on thermal conductivity of additively manufactured pure tungsten, International Journal of Refractory Metals and Hard Materials. (2020) 105135.

DOI: 10.1016/j.ijrmhm.2019.105135

[8] Yinghu Dong, Xianliang Zhou, Xiaozhen Hua. Effect of Porosity on Thermal Performance of Mo-Cu Composite, Material & Heat Treatment. 37(2008)1-6.

[9] Jin Chen, Ning Xiong, Qilu Ge. Study on density uniformity of tungsten crucible, China Tungsten Industry. 32(2017)35-38.

[10] Luyan Wang, Caobing Li, Yuqing Zhang. Application of Jet Grading Technology in Tungsten Products. 11(2019)70-78.