Progress in modelling solidification microstructures in metals and alloys. Part II: dendrites from 2001 to 2018

W Kurz, M Rappaz, R Trivedi - International Materials …, 2021 - journals.sagepub.com
This is the first account of the history of modelling dendritic and cellular solidification. While
Part I reviewed the progress up to the year 2000 [Kurz W, Fisher DJ, Trivedi R. Progress in …

[HTML][HTML] Recent advances in inoculation treatment for powder-based additive manufacturing of aluminium alloys

Q Tan, M Zhang - Materials Science and Engineering: R: Reports, 2024 - Elsevier
Powder-based additive manufacturing (AM) is revolutionizing the fabrication of advanced
engineering metallic materials, including aluminium (Al) alloys, which are the workhorse …

Towards understanding grain nucleation under Additive Manufacturing solidification conditions

A Prasad, L Yuan, P Lee, M Patel, D Qiu, M Easton… - Acta Materialia, 2020 - Elsevier
This paper provides insights into the effect of high thermal gradients and cooling rates on
equiaxed grain nucleation and growth in conditions similar to those experienced during …

Revealing the mechanisms of grain nucleation and formation during additive manufacturing

M Bermingham, D StJohn, M Easton, L Yuan… - Jom, 2020 - Springer
The Interdependence model is now widely used to analyze the results of grain refinement
studies. Although the model was developed to predict the grain size of an alloy cast under …

Solidification microstructure simulation of Ti-6Al-4V in metal additive manufacturing: A review

J Li, X Zhou, M Brochu, N Provatas, YF Zhao - Additive Manufacturing, 2020 - Elsevier
Metal additive manufacturing (MAM) technology is now changing the pattern of the high-end
manufacturing industry, among which microstructure simulation gradually shows its …

Impact of fluid flow on the dendrite growth and the formation of new grains in additive manufacturing

Y Yu, L Wang, J Zhou, H Li, Y Li, W Yan, F Lin - Additive Manufacturing, 2022 - Elsevier
Manipulating the formation of new grains in metal additive manufacturing (AM) is critical for
tailoring the grain structure in the as-built components. Temperature gradient and …

Solute enrichment induced dendritic fragmentation in directional solidification of nickel-based superalloys

N Ren, C Panwisawas, J Li, M **a, H Dong, J Li - Acta Materialia, 2021 - Elsevier
Dendritic fragmentation should be strictly prevented to avoid introducing new equiaxed
grains of arbitrary orientations (known as freckles) in the single crystal blade, whose …

Towards β-fleck defect free additively manufactured titanium alloys by promoting the columnar to equiaxed transition and grain refinement

CH Ng, MJ Bermingham, L Yuan, MS Dargusch - Acta Materialia, 2022 - Elsevier
Metastable β-Titanium alloys containing a high content of segregated β-stabilising elements
such as Cr make segregation defects (known as β-flecks or β-freckles) difficult to avoid …

Freckle prediction model incorporating geometrical effects for Ni-based single-crystal superalloy components

Y Liu, F Wang, D Ma, Q Yang, W Xu, Y Zhao, H Dong… - Acta Materialia, 2024 - Elsevier
A freckle is a grain defect frequently found in Ni-based single-crystal (SC) superalloy
castings resulting in a high scrap rate. A precise prediction of the defect before production is …

[HTML][HTML] Digital twin for directional solidification of a single-crystal turbine blade

H Zhang, X Liu, D Ma, M Song, A Ludwig, A Kharicha… - Acta Materialia, 2023 - Elsevier
Single-crystal superalloy turbine blades (TBs) fabricated using directional solidification are
key components of aeroengines and gas turbines. Owing to thermal–solutal convection …