Eiji Akiyama

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Institute for Materials Research, Tohoku University

Japan

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Professor Eiji Akiyama is a faculty member at the Institute for Materials Research, Tohoku University, Japan. His research areas include hydrogen embrittlement resistance in high-entropy alloys, corrosion and stress corrosion cracking in stainless steels, and the effects of solution chemistry on electrochemical hydrogen charging. Recent publications highlight his work on hydrogen desorption in austenitic steels and the mechanisms of stress and plastic strain partitioning in advanced steel materials.

Recent Grants

Grant: Close

HYDROGENOMICS: Creation of Innovative Materials, Devices, and Reaction Processes using Higher-Order Hydrogen Functions

Open Date: 2018-06-29

Close Date: 2023-03-31

Grant: Close

鍛造熱処理による超高強度ＴＲＩＰ鋼の耐水素脆化特性改善機構の解明

Open Date: 2018-04-01

Close Date: 2021-03-31

Grant: Close

Small-angle scattering for characterizing nano-scale heterogeneities of light elements in steels

Open Date: 2009-01-01

Close Date: 2011-12-31

Grant: Close

Effect of passive film on tribocorrosion

Open Date: 2008-01-01

Close Date: 2010-12-31

Grant: Close

Fretting fatigue behaviour of Ni-free high-nitrogen stainless steel in a simulated body fluid

Open Date: 2008-01-01

Close Date: 2011-12-31

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Assistant Professor

Tohoku University

JAPAN

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Eiji Akiyama

Research Interests

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About

Recent Grants

Articles (28)

Stability of electrochemical hydrogen charging in NaCl aqueous solution containing NH4SCN: Effect of changes in solution chemistry

Strain rate dependency of hydrogen embrittlement resistance in an additively manufactured equiatomic CoCrFeNi high-entropy alloy

Corrosion and stress corrosion cracking resistances of laser powder bed fused and binder jetted 316L austenitic stainless steel

Factors controlling transformation-induced hydrogen desorption and hydrogen-reduced transformability in austenitic steels clarified via dynamic hydrogen detection during cryogenic deformation

Stress and Plastic Strain Partitioning Behaviors and Those Contributions to Martensitic Transformation of Retained Austenite in Medium Manganese and Transformation-Induced Plasticity-Aided Bainitic Ferrite Steels

Grain boundary nanochemistry and intergranular corrosion of Fe-0.01wt.% P alloy: Roles of elemental segregations and misorientation

Hydrogen Effects on Hall-Petch Coefficient and Fracture Strength in Pure Ni and Ni-20Cr Alloy: A Macroscopic Insight of the Hydrogen Embrittlement Mechanism

Semi-quantitative characterisation of coherency-dependent hydrogen diffusion at Σ3 grain boundaries in pure Ni

Stress-controlled hydrogen embrittlement failure in U-bend high-strength steel

Effect of Hydrogen on Fatigue Life and Fracture Morphologies of TRIP-Aided Martensitic Steels with Added Nitrogen

Microscopic visualization of hydrogen diffusion in UNS S32750 super duplex stainless steel: Roles of crystal structure and grain size

Effect of Stretch-forming on Hydrogen Diffusion Behavior in High-strength Steel Sheet

Grain Refinement Effect on Resistance to Hydrogen-assisted Crack Growth in Equiatomic CoCrFeNi High-entropy Alloy with Different H Charging Conditions

Hydrogen Embrittlement Property of a 1.5 GPa Dual-Phase Steel Evaluated Using U-bending Test: A Comparison with Tempered Martensitic Steel with Identical Tensile Strength

Critical role of initial multi-phase microstructure on the phase transformations during hydrogenation in Fe-Mo alloy system

Effect of Hydrogen on Tensile Shear Strength of Spot-Welded Ultrahigh-Strength TRIP-Aided Martensitic Steel Sheet

Effect of Stretch-forming on Hydrogen Diffusion Behavior in High-strength Steel Sheet

Real-Time 2D Mapping of Hydrogen Entry and pH Distribution inside a NaCl Droplet on an Fe Sheet Using a Hydrogenochromic Sensor

Influence of post-oxidizing treatment on passivation performance on the spin-coated titanium oxide films on crystalline silicon

Mesoscale quantification of grain boundary character and local plasticity in hydrogen-assisted intergranular and intergranular-like cracking paths in tempered martensitic steel

Temperature dependence of hydrogen-assisted damage evolution and fracture behavior in TRIP-aided bainitic ferrite steel

Environment-assisted cracking of AZ31 magnesium alloy in a borate buffer solution containing ammonium thiocyanate under various potentials

Phase transformations and microstructure evolutions during depressurization of hydrogenated Fe–Mn–Si–Cr alloy

Quantitative Evaluation of the Relationship between Strain and Color Change in Opal Photonic Crystal Films and Application into Complex Specimen Geometries

In situ 2D mapping of hydrogen entry into an Fe sheet under a droplet of NaCl solution using a hydrogenochromic sensor

In Situ Visualization of the Hydrogen Distribution in an Fe Sheet Under Corrosion Conditions Using Polyaniline

Hydrogen-accelerated fatigue crack growth of equiatomic Fe–Cr–Ni–Mn–Co high-entropy alloy evaluated by compact tension testing

Real‐Time Visualization of Hydrogen Distribution in Metals Using Polyaniline: An Ultrasensitive Hydrogenochromic Sensor

Collaborators (5)

Yasuyoshi Kurokawa

Kazuhiro Gotoh

Van Hoang NGUYEN

Toyoto Sato

Hiroshi Kakinuma

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