Hanshan  Dong

Prof. Hanshan Dong

The University of Birmingham, UK
orcid

Research Focus & Metrics

Academic Career Length

31Years (1996-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2019 in Materials & Design
Verified
Journal Article
Open access
SFShuo Feng
Shuo Feng
HZHuiyu Zhou
Huiyu Zhou
Hongbiao DongHongbiao Dong
Hongbiao Dong

1 March 2000 in Wear
Verified
Journal Article
Closed access
HDHanshan Dong
Hanshan Dong
TBT Bell
T Bell


21 December 2018 in Nature Communications
Verified
Journal Article
Open access
PDF file
LALee Aucott
Lee Aucott
Hongbiao DongHongbiao Dong
Hongbiao Dong
WMWajira Mirihanage
Wajira Mirihanage
RARobert C. Atwood
Robert C. Atwood
AKAnton Kidess
Anton Kidess
HAHelen. V. Atkinson
Helen. V. Atkinson
Internal flow behaviour during melt-pool-based metal manufacturing remains unclear and hinders progression to process optimisation. In this contribution, we present direct time-resolved imaging of melt pool flow dynamics from a high-energy synchrotron radiation experiment. We track internal flow streams during arc welding of steel and measure instantaneous flow velocities ranging from 0.1 m s−1 to 0.5 m s−1. When the temperature-dependent surface tension coefficient is negative, bulk turbulence is the main flow mechanism and the critical velocity for surface turbulence is below the limits identified in previous theoretical studies. When the alloy exhibits a positive temperature-dependent surface tension coefficient, surface turbulence occurs and derisory oxides can be entrapped within the subsequent solid as result of higher flow velocities. The widely used arc welding and the emerging arc additive manufacturing routes can be optimised by controlling internal melt flow through adjusting surface active elements.

1 May 2017 in Applied Surface Science
Verified
Journal Article
Closed access
DBDebajyoti Bhaduri
Debajyoti Bhaduri
PPPavel Penchev
Pavel Penchev
ABAfif Batal
Afif Batal
SDStefan Dimov
Stefan Dimov
SSSein Leung Soo
Sein Leung Soo
HDHanshan Dong
Hanshan Dong

1 January 1999 in Surface and Coatings Technology
Verified
Journal Article
Closed access
HDHanshan Dong
Hanshan Dong
TBT. Bell
T. Bell