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An investigation of flow patterns and hardness distributions using different anvil alignments in high-pressure torsion.(NANOSTRUCTURED MATERIALS)

Huang, Yi ; Kawasaki, Megumi ; Langdon, Terence G.

Journal of Materials Science, July 1, 2013, Vol.48(13), p.4533(10) [Tạp chí có phản biện]

ISSN: 0022-2461

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  • Nhan đề:
    An investigation of flow patterns and hardness distributions using different anvil alignments in high-pressure torsion.(NANOSTRUCTURED MATERIALS)
  • Tác giả: Huang, Yi ; Kawasaki, Megumi ; Langdon, Terence G.
  • Chủ đề: Flow (Dynamics) -- Analysis ; Flow (Dynamics) -- Investigations ; Hardness (Materials) -- Analysis ; Hardness (Materials) -- Investigations
  • Là 1 phần của: Journal of Materials Science, July 1, 2013, Vol.48(13), p.4533(10)
  • Mô tả: A super duplex stainless steel was selected as a model material to evaluate the origins of unusual double-swirl flow patterns that have been reported on the upper surfaces of discs processed by high-pressure torsion (HPT). The experiments were conducted by making changes in the anvil alignment prior to HPT processing. Experiments were conducted under two different conditions: using essentially a perfect anvil alignment and with an initial anvil misalignment of 100 [micro]m. The experimental results show that no double swirls are visible on the surfaces of discs processed under conditions of perfect anvil alignment but double swirls become visible when processing with a misalignment of 100 [micro]m. The presence of double swirls also affects the measured hardness distributions, and for a misalignment of 100 [micro]m the hardness distribution along a diameter may be non-symmetric with respect to the centre of the disc.
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 0022-2461

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