In situ oxide dispersion strengthened tungsten alloys with high compressive strength and high strain-to-failure. Huang, L., Jiang, L., Topping, T. D., Dai, C., Wang, X., Carpenter, R., Haines, C., & Schoenung, J. M. Acta Materialia, 122(Supplement C):19–31, January, 2017. ![In situ oxide dispersion strengthened tungsten alloys with high compressive strength and high strain-to-failure [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex In this work a novel process methodology to concurrently improve the compressive strength (2078 MPa at a strain rate of 5 × 10−4 s−1) and strain-to-failure (over 40%) of bulk tungsten materials has been described. The process involves the in situ formation of intragranular tungsten oxide nanoparticles, facilitated by the application of a pressure of 1 GPa at a low sintering temperature of 1200 °C during spark plasma sintering (SPS). The results show that the application of a high pressure of 1 GPa during SPS significantly accelerates the densification process. Concurrently, the second phase oxide nanoparticles with an average grain size of 108 nm, which are distributed within the interiors of the W grains, simultaneously provide strengthening and plasticity by inhibiting grain growth, and generating, blocking, and storing dislocations.
@article{huang_situ_2017,
title = {In situ oxide dispersion strengthened tungsten alloys with high compressive strength and high strain-to-failure},
volume = {122},
issn = {1359-6454},
url = {http://www.sciencedirect.com/science/article/pii/S1359645416307339},
doi = {10.1016/j.actamat.2016.09.034},
abstract = {In this work a novel process methodology to concurrently improve the compressive strength (2078 MPa at a strain rate of 5 × 10−4 s−1) and strain-to-failure (over 40\%) of bulk tungsten materials has been described. The process involves the in situ formation of intragranular tungsten oxide nanoparticles, facilitated by the application of a pressure of 1 GPa at a low sintering temperature of 1200 °C during spark plasma sintering (SPS). The results show that the application of a high pressure of 1 GPa during SPS significantly accelerates the densification process. Concurrently, the second phase oxide nanoparticles with an average grain size of 108 nm, which are distributed within the interiors of the W grains, simultaneously provide strengthening and plasticity by inhibiting grain growth, and generating, blocking, and storing dislocations.},
number = {Supplement C},
urldate = {2018-01-08},
journal = {Acta Materialia},
author = {Huang, Lin and Jiang, Lin and Topping, Troy D. and Dai, Chen and Wang, Xin and Carpenter, Ryan and Haines, Christopher and Schoenung, Julie M.},
month = jan,
year = {2017},
keywords = {High-pressure spark plasma sintering (HP-SPS), Improved compressive behavior, In situ oxide dispersion strengthening, Published, Reviewed, Tungsten},
pages = {19--31},
}
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