2026 David H. StJohn: Mechanical and Aerospace Engineering Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Mechanical and Aerospace Engineering	74	294	267	9	8	295	23827
Materials Science	74	3572	3453	118	117	297	23827

Research.com Recognitions

2026 - Research.com Mechanical and Aerospace Engineering in Australia Leader Award

Overview

David H. StJohn is affiliated with the University of Queensland in Australia and specializes in research within the fields of Engineering and Materials Science. Their work predominantly focuses on Mechanical Engineering and Aerospace Engineering, with further contributions to Materials Chemistry, Automotive Engineering, and Biomaterials.

The scientist's research topics include:

Aluminum Alloy Microstructure Properties
Additive Manufacturing Materials and Processes
Solidification and crystal growth phenomena
Aluminum Alloys Composites Properties
Additive Manufacturing and 3D Printing Technologies
High Entropy Alloys Studies
Magnesium Alloys: Properties and Applications

Frequent publication venues for their work include:

Acta Materialia
JOM
Journal of Alloys and Compounds
Metallurgical and Materials Transactions A
Scripta Materialia

David H. StJohn has collaborated extensively with several coauthors, including:

Matthew S. Dargusch
Mark Easton
Nagasivamuni Balasubramani
Gui Wang
Dong Qiu

Representative recent papers from their body of work are:

Grain structure control during metal 3D printing by high-intensity ultrasound, 2020, Nature Communications
Towards understanding grain nucleation under Additive Manufacturing solidification conditions, 2020, Acta Materialia
Grain Refinement of Alloys in Fusion-Based Additive Manufacturing Processes, 2020, Metallurgical and Materials Transactions A
Ultrauniform, strong, and ductile 3D-printed titanium alloy through bifunctional alloy design, 2024, Science
Revealing the Mechanisms of Grain Nucleation and Formation During Additive Manufacturing, 2020, JOM

Best Publications

The role of solute in grain refinement of magnesium

Y. C. Lee;A. K. Dahle;D. H. StJohn

1007
Citations
Additive manufacturing of ultrafine-grained high-strength titanium alloys

Duyao Zhang;Dong Qiu;Mark A. Gibson;Mark A. Gibson;Yufeng Zheng;Yufeng Zheng

1001
Citations
Grain refinement of magnesium alloys

David H. StJohn;Ma Qian;Mark A. Easton;Peng Cao

879
Citations
Grain refinement of aluminum alloys: Part I. the nucleant and solute paradigms—a review of the literature

Mark Easton;David StJohn

876
Citations
The electrochemical corrosion of pure magnesium in 1 N NaCl

G. Song;G. Song;A. Atrens;D. Stjohn;J. Nairn

778
Citations
Grain structure control during metal 3D printing by high-intensity ultrasound.

C. J. Todaro;M. A. Easton;D. Qiu;D. Zhang

738
Citations
The Interdependence Theory: The relationship between grain formation and nucleant selection

DH Stjohn;M Qian;MA Easton;Peng Cao

731
Citations
Promoting the columnar to equiaxed transition and grain refinement of titanium alloys during additive manufacturing

M.J. Bermingham;D.H. StJohn;J. Krynen;S. Tedman-Jones

703
Citations
Development of the as-cast microstructure in magnesium-aluminium alloys

Arne K. Dahle;Young C. Lee;Mark D. Nave;Paul L. Schaffer

702
Citations
A model of grain refinement incorporating alloy constitution and potency of heterogeneous nucleant particles

M.A Easton;D.H StJohn

686
Citations
Corrosion resistance of aged die cast magnesium alloy AZ91D

Guangling Song;Amanda L Bowles;David H StJohn

608
Citations
Galvanic corrosion of magnesium alloy AZ91D in contact with an aluminium alloy, steel and zinc

Guangling Song;Birgir Johannesson;Sarath Hapugoda;David StJohn

440
Citations
Grain refinement of aluminum alloys: Part II. Confirmation of, and a mechanism for, the solute paradigm

Mark Easton;David StJohn

421
Citations
Controlling the microstructure and properties of wire arc additive manufactured Ti-6Al-4V with trace boron additions

M J Bermingham;Damon Kent;Damon Kent;H Zhan;D H StJohn

407
Citations
An Analysis of the Relationship between Grain Size, Solute Content, and the Potency and Number Density of Nucleant Particles

Mark Easton;David StJohn

407
Citations
Recent advances in grain refinement of light metals and alloys

M.A. Easton;M. Qian;A. Prasad;D.H. StJohn

340
Citations
Potency of high-intensity ultrasonic treatment for grain refinement of magnesium alloys

A. Ramirez;Ma Qian;B. Davis;T. Wilks

317
Citations
The effect of zirconium grain refinement on the corrosion behaviour of magnesium-rare earth alloy MEZ

Guangling Song;David StJohn

311
Citations
Grain Refinement of Magnesium Alloys: A Review of Recent Research, Theoretical Developments, and Their Application

D. H. StJohn;M. A. Easton;M. A. Easton;M. Qian;J. A. Taylor

276
Citations
Rheological behaviour of the mushy zone and its effect on the formation of casting defects during solidification

A.K. Dahle;D.H. StJohn

271
Citations
An Hydrogen Evolution Method for the Estimation of the Corrosion Rate of Magnesium Alloys

Guangling Song;Andrej Atrens;David StJohn

248
Citations

Frequent Co-Authors

Ma Qian RMIT University

Mark Alan Easton RMIT University

Matthew S. Dargusch University of Queensland

Michael Bermingham University of Queensland

Arne K. Dahle Jönköping University

Peng Cao University of Auckland

Guang-Ling Song Xiamen University

Peter D. Lee University College London

Dong Qiu RMIT University

Kazuhiro Nogita University of Queensland

External Links

Personal website of David H. StJohn Google Scholar page

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