Hiroshi Oka

Assistant Professor

Hokkaido University

Japan

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Hiroshi Oka is an Assistant Professor at Hokkaido University, Japan. His research primarily focuses on high entropy alloys and medium entropy alloys, specifically investigating their microstructural and mechanical properties, diffusion behavior, and fabrication techniques. Recent articles authored by Professor Oka explore topics such as hydrogen absorption in lightweight alloys and the effects of alloy composition on material performance.

Articles (19)

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2025

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2025

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2025

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2024

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2024

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2024

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2023

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2022

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2022

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2022

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2022

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2022

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2021

Collaborators (3)

Kohta Asano

Visiting Professor

Meiji University

JAPAN

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shigehito isobe

Hokkaido University

JAPAN

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Naoyuki Hashimoto

Professor

Hokkaido University

JAPAN

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Hiroshi Oka

Research Interests

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About

Articles (19)

Hydrogen absorption and desorption properties of Li-Mg-Al-Ti-M based lightweight high entropy alloys

Controlling the diffusion behavior in diffusion bonded reduced activation Cr0.8FeMn1.3Ni1.3 high entropy alloy/316SS joints through dislocations

Fabrication of Zr<sub>3</sub>AlC<sub>2</sub> by Spark Plasma Sintering

Influence of He injection amount on the microstructure of ion irradiated Cr0.8FeMnNi medium entropy alloy compared with 316L stainless steel

Effects of vacuum heat treatment on novel Co-free Al0·9Cr0·8FeMn0·8Ni2.0 eutectic high entropy alloy: Microstructure evolution and mechanical properties

Role of aging temperature on thermal stability of Co-free Cr0.8FeMn1.3Ni1.3 high-entropy alloy: Decomposition and embrittlement at intermediate temperatures

Effects of Mn Content on Microstructure and Mechanical Properties of Co-Free Medium Entropy Alloys in the Cr-Fe-Mn-Ni System

Vacuum diffusion bonding between equiatomic CoCrNi-based concentrated solid solution alloys system and 316 stainless steel by spark plasma sintering

Irradiation behavior of HfNbTaTiV in comparison of HfNbTaTiZr and F82H

Overcoming strength-ductility trade-off in CoCrNi medium entropy alloy by forming fine crescent grains in laser powder-bed fusion

Study on Reduced Activation High Entropy Alloys for Nuclear Application

Synthesis of Li-Mg-Al-Ti based lightweight high entropy alloys by mechanical alloying and investigation of conditions for solid solution formation

Unveiling the effect of Ni interlayer on diffusion bonded reduced activation Cr0.8FeMnNi medium entropy alloy/316 stainless steel joint: Interfacial microstructure, diffusion behavior and mechanical properties

Effect of stacking fault energy on irradiation damage in reduced activation high entropy alloys

Effect of Al on oxidation behavior of Al<sub>x</sub>CrCuFeNi<sub>2</sub> (x = 0.2, 0.4, 0.6) high entropy alloys

Effect of nitrogen concentration on creep strength and microstructure of 9Cr-ODS ferritic/martensitic steel

Improvement of thermal conductivity by adding tungsten and/or copper wire in F82H

Study on irradiation effects of refractory bcc high-entropy alloy

Oxidation Behavior of Cu-Containing Concentrated Solid Solution Alloys under Steam Conditions

Collaborators (3)

Kohta Asano

shigehito isobe

Naoyuki Hashimoto

Make your next move.

Hiroshi Oka

Research Interests

Explore related searches

Contact this professor

About

Articles (19)

Hydrogen absorption and desorption properties of Li-Mg-Al-Ti-M based lightweight high entropy alloys

Controlling the diffusion behavior in diffusion bonded reduced activation Cr0.8FeMn1.3Ni1.3 high entropy alloy/316SS joints through dislocations

Fabrication of Zr&lt;sub&gt;3&lt;/sub&gt;AlC&lt;sub&gt;2&lt;/sub&gt; by Spark Plasma Sintering

Influence of He injection amount on the microstructure of ion irradiated Cr0.8FeMnNi medium entropy alloy compared with 316L stainless steel

Effects of vacuum heat treatment on novel Co-free Al0·9Cr0·8FeMn0·8Ni2.0 eutectic high entropy alloy: Microstructure evolution and mechanical properties

Role of aging temperature on thermal stability of Co-free Cr0.8FeMn1.3Ni1.3 high-entropy alloy: Decomposition and embrittlement at intermediate temperatures

Effects of Mn Content on Microstructure and Mechanical Properties of Co-Free Medium Entropy Alloys in the Cr-Fe-Mn-Ni System

Vacuum diffusion bonding between equiatomic CoCrNi-based concentrated solid solution alloys system and 316 stainless steel by spark plasma sintering

Irradiation behavior of HfNbTaTiV in comparison of HfNbTaTiZr and F82H

Overcoming strength-ductility trade-off in CoCrNi medium entropy alloy by forming fine crescent grains in laser powder-bed fusion

Study on Reduced Activation High Entropy Alloys for Nuclear Application

Synthesis of Li-Mg-Al-Ti based lightweight high entropy alloys by mechanical alloying and investigation of conditions for solid solution formation

Unveiling the effect of Ni interlayer on diffusion bonded reduced activation Cr0.8FeMnNi medium entropy alloy/316 stainless steel joint: Interfacial microstructure, diffusion behavior and mechanical properties

Effect of stacking fault energy on irradiation damage in reduced activation high entropy alloys

Effect of Al on oxidation behavior of Al<sub>x</sub>CrCuFeNi<sub>2</sub> (x = 0.2, 0.4, 0.6) high entropy alloys

Effect of nitrogen concentration on creep strength and microstructure of 9Cr-ODS ferritic/martensitic steel

Improvement of thermal conductivity by adding tungsten and/or copper wire in F82H

Study on irradiation effects of refractory bcc high-entropy alloy

Oxidation Behavior of Cu-Containing Concentrated Solid Solution Alloys under Steam Conditions

Collaborators (3)

Kohta Asano

shigehito isobe

Naoyuki Hashimoto

Make your next move.

Fabrication of Zr<sub>3</sub>AlC<sub>2</sub> by Spark Plasma Sintering