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Researcher · Kyushu University · Japan

Motomichi Koyama

Motomichi Koyama publishes mostly in Mechanical Engineering, Materials Chemistry and Metals and Alloys, on topics such as Microstructure and Mechanical Properties of Steels, Hydrogen embrittlement and corrosion behaviors in metals and Fatigue and fracture mechanics.

World rank
#124,399
of 1,633,909 ranked researchers
Rank in Japan
#2,743
of 114,622
Works
118
Citations
597
Citations per work
5.1

What does Motomichi Koyama research?

Mechanical Engineering: 35.0%Materials Chemistry: 21.1%Metals and Alloys: 18.7%Mechanics of Materials: 14.6%other fields: 10.6%35%top field
Mechanical Engineering35.0%Materials Chemistry21.1%Metals and Alloys18.7%Mechanics of Materials14.6%other fields10.6%

Shares of their own output, by the field each of their topics belongs to. The grey slice is everything not listed.

  1. 1Mechanical Engineering35% of their works
  2. 2Materials Chemistry21% of their works
  3. 3Metals and Alloys19% of their works
  4. 4Mechanics of Materials15% of their works
  5. 5Electronic, Optical and Magnetic Materials2% of their works
  6. 6Aerospace Engineering2% of their works

Research topics

Which keywords describe Motomichi Koyama's research?

The keywords of their largest research topics: Microstructure, Mechanical Properties, High-Strength Steels, Martensite Transformation, Hydrogen Embrittlement, Passive Films, Cryogenic Treatment and Fatigue Crack Closure.

Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most.

All 19 words, with their numbers
  1. Microstructure444 topics
  2. Mechanical Properties363 topics
  3. High-Strength Steels261 topic
  4. Martensite Transformation261 topic
  5. Hydrogen Embrittlement231 topic
  6. Passive Films231 topic
  7. Cryogenic Treatment91 topic
  8. Fatigue Crack Closure91 topic
  9. Fracture Toughness Testing91 topic
  10. Phase Stability92 topics
  11. Wear Resistance91 topic
  12. Dynamic Recrystallization81 topic
  13. Hot Deformation81 topic
  14. High-Temperature Alloys51 topic
  15. Superalloys51 topic
  16. Corrosion Inhibitors41 topic
  17. High-Entropy Alloys41 topic
  18. Metal Corrosion41 topic
  19. Multi-Component Alloys41 topic

Where does Motomichi Koyama work?

Motomichi Koyama's main affiliation in the publication record is Kyushu University, Japan.

How many publications and citations does Motomichi Koyama have?

Science Explorer counts 118 works and 597 citations for Motomichi Koyama, ranking #124,399 of 1,633,909 researchers worldwide on the composite score.

Ranked on field-normalised excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.

Papers, co-authors, who cited this work and researchers on the nearest topics are in the interactive view on the map. Is this your page? Request a correction or removal.