Tensile Flow Behavior of Tungsten Heavy Alloys Produced by CIPing and Gelcasting Routes

Panchal, Ashutosh; Kiran, U. Ravi; Nandy, T.K.; Singh, A. K.

doi:10.1007/s11661-018-4590-7

Cited by 13 publications

(2 citation statements)

References 24 publications

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“…Several investigators have utilized gelcasting technique for metallic systems such as steel, copper, and tungsten carbide. [7][8][9][10] Li Y. and Guo Z. have studied the rheological behavior of slurry and properties of sintered tungsten carbide for cutting tool applications. Present work is mainly concerned to address these challenges and develop the gelcasting process as an alternate to conventional process (CIP) for processing tungsten and its alloys in complex shapes economically.…”

Section: Modification Of Powder Surface With Proper Coatingsmentioning

confidence: 99%

On the development of gelcasting process for tungsten and its alloys

Panchal

Nandy

Singh

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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Gelcasting technique has been successfully used for the preparation of porous tungsten. Gel forming monomer (methacrylamide (MAM)) and Cross-linker (NN’-Methylenebisacrylamide (MBAM)) dissolved in water were used for gelcasting of green compacts of tungsten with 39% solid loading. Appropriate quantity of dispersant, initiator, and catalyst were used in order to obtain a uniform dispersion of tungsten particles and also control the polymerization process. Several issues related to dispersant selection, de-airing, de-bindering, sintering, and selection of mold material have been addressed in order to obtain a defect-free product. Theoretical density of the porous sintered tungsten pellets produced by gelcasting process is ∼85%. The average pore diameter and mean pore area are 3 µm and 16 µm2, respectively, which are specifically required for the cathode application. Complex shape components of pure tungsten have been successfully made using gelcasting technique for the first time.

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Section: Modification Of Powder Surface With Proper Coatingsmentioning

confidence: 99%

On the development of gelcasting process for tungsten and its alloys

Panchal

Nandy

Singh

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

Self Cite

View full text Add to dashboard Cite

show abstract

“…It has been shown, for example, that if small powders are used even higher strength can be obtained with LMD, while still retaining a uniform elongation of ~5% for a 75W-17.5Ni-7.5Fe alloy [27]. Compared to the reported as-sintered LPS samples [6,7,13,[37][38][39][40][41][42][43][44], LMD provides a higher tensile strength. Note that some of the LPS samples have higher strengths than the present reference LPS sample.…”

Section: Lmd Processingmentioning

confidence: 99%