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Materials Science

D-Index
58
Citations
16535
World Ranking
7570
National Ranking
1876

Research.com Recognitions

  • 2019 - Member of the National Academy of Engineering For the conception, invention, and reduction to practice of quenching and partitioning steel.

Overview

John G. Speer is affiliated with the Colorado School of Mines in the United States. Their research primarily focuses on engineering and materials science, with significant contributions in mechanical engineering and materials chemistry. The scientist's work covers a range of subfields including metals and alloys, mechanics of materials, and electronic, optical, and magnetic materials.

Their research topics concentrate on the microstructure and mechanical properties of steels, metal alloys wear and properties, and hydrogen embrittlement and corrosion behaviors in metals. Additional areas of focus include metallurgy and material forming, welding techniques and residual stresses, as well as metal and thin film mechanics and advanced welding techniques analysis.

John G. Speer has coauthored extensively with the following researchers:

  • Kip O. Findley
  • Emmanuel De Moor
  • Lawrence Cho
  • David K. Matlock
  • Diptak Bhattacharya

Frequent publication venues for their work include:

  • Metallurgical and Materials Transactions A
  • SSRN Electronic Journal
  • Proceedings of the ASM Heat Treating Society Conference
  • Materials Science and Engineering A
  • Metals

Selected recent papers authored by John G. Speer are:

  • Characteristics and mechanisms of hydrogen-induced quasi-cleavage fracture of lath martensitic steel, 2021, Acta Materialia
  • Effects of hydrogen pressure and prior austenite grain size on the hydrogen embrittlement characteristics of a press-hardened martensitic steel, 2021, International Journal of Hydrogen Energy
  • Austenite formation and cementite dissolution during intercritical annealing of a medium-manganese steel from a martensitic condition, 2021, Materials & Design
  • Mechanisms for improving tensile properties at elevated temperature in fire-resistant steel with Mo and Nb, 2020, Materials & Design
  • Influence of the starting microstructure of an advanced high strength steel on the characteristics of Zn-Assisted liquid metal embrittlement, 2020, Materials Science and Engineering A

John G. Speer was honored in 2019 as a Member of the National Academy of Engineering for the conception, invention, and reduction to practice of quenching and partitioning steel.

Best Publications

  • Carbon partitioning into austenite after martensite transformation

    J. Speer;D.K. Matlock;B.C. De Cooman;J.G. Schroth

  • Quenching and partitioning martensite-a novel steel heat treatment

    D.V. Edmonds;K. He;F.C. Rizzo;B.C. De Cooman

  • Partitioning of carbon from supersaturated plates of ferrite, with application to steel processing and fundamentals of the bainite transformation

    John G. Speer;David V. Edmonds;Fernando C. Rizzo;David K. Matlock

  • Overview of processing, microstructure and mechanical properties of ultrafine grained bcc steels

    R. Song;D. Ponge;D. Raabe;J. G. Speer

  • Quantitative measurement of deformation-induced martensite in 304 stainless steel by X-ray diffraction

    Amar K. De;David C. Murdock;Martin C. Mataya;John G. Speer

  • Carbon partitioning to austenite from martensite or bainite during the quench and partition (Q&P) process: A critical assessment

    A.J. Clarke;A.J. Clarke;J.G. Speer;M.K. Miller;R.E. Hackenberg

  • The "quenching and partitioning" process: background and recent progress

    John G. Speer;Fernando C. Rizzo Assunção;David K. Matlock;David V. Edmonds

  • Austenite Stability Effects on Tensile Behavior of Manganese-Enriched-Austenite Transformation-Induced Plasticity Steel

    P. J. Gibbs;E. De Moor;M. J. Merwin;B. Clausen

  • Effect of Retained Austenite Stabilized via Quench and Partitioning on the Strain Hardening of Martensitic Steels

    E. De Moor;S. Lacroix;A.J. Clarke;J. Penning

  • A perspective on the morphology of bainite

    B. L. Bramfitt;J. G. Speer

  • Austenite stabilization through manganese enrichment

    Emmanuel De Moor;David K. Matlock;John G. Speer;Matthew J. Merwin

  • Third Generation of AHSS: Microstructure Design Concepts

    David K. Matlock;John G. Speer

  • Analysis of Microstructure Evolution in Quenching and Partitioning Automotive Sheet Steel

    John G. Speer;E. De Moor;K. O. Findley;D. K. Matlock

  • Deformation-induced phase transformation and strain hardening in type 304 austenitic stainless steel

    Amar K. De;John G. Speer;David K. Matlock;David C. Murdock

  • Quenching and Partitioning Steel Heat Treatment

    Li Wang;John G. Speer

  • Effect of Carbon and Manganese on the Quenching and Partitioning Response of CMnSi Steels

    Emmanuel De Moor;John Gordon Speer;David Kidder Matlock;Jai-Hyun Kwak

  • Materials for Automotive Lightweighting

    Alan Taub;Emmanuel De Moor;Alan Luo;David K. Matlock

  • Influence of carbon partitioning kinetics on final austenite fraction during quenching and partitioning

    Amy J Clarke;Amy J Clarke;John G Speer;David K Matlock;F C Rizzo

  • Carbonitride precipitation in niobium/vanadium microalloyed steels

    J. G. Speer;J. R. Michael;S. S. Hansen

  • Application of the Quenching and Partitioning (Q&P) Process to a Medium-Carbon, High-Si Microalloyed Bar Steel

    David K. Matlock;Volker E. Bräutigam;John G. Speer

  • Color tint-etching for multiphase steels

    Amar K. De;John G. Speer;David K. Matlock

Frequent Co-Authors

David K. Matlock
David K. Matlock Colorado School of Mines
D. L. Williamson
D. L. Williamson Colorado School of Mines
George Krauss
George Krauss Colorado School of Mines
Bruno C. De Cooman
Bruno C. De Cooman Pohang University of Science and Technology
Brian G. Thomas
Brian G. Thomas Colorado School of Mines
Michael K Miller
Michael K Miller Oak Ridge National Laboratory
Bjørn Clausen
Bjørn Clausen Los Alamos National Laboratory
Stuart A. Maloy
Stuart A. Maloy Pacific Northwest National Laboratory
Jonathan Almer
Jonathan Almer Argonne National Laboratory
Hans-Joachim Kleebe
Hans-Joachim Kleebe Technical University of Darmstadt

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