Relationship between Particle Size and Martensitic Transformation in an Fe-30at%Ni Alloy

J.M. Nam; Tomoyuki Terai; Masashi Mino; Y. Aikawa; Tomoyuki Kakeshita

doi:10.4028/www.scientific.net/MSF.654-656.146

Paper Titles

Isothermal Martensitic Transformation in a Sensitized SUS304 Stainless Steel under Magnetic Field
p.130

Microstructural Observation on Materials of the Japanese Sword under Fold-Forging Process
p.134

Evidence of Lath Martensite in High-C Japanese Sword Produced from Tamahagane Steel by Tatara Process
p.138

Colored Metallography Study of Bainite Steel Used for High Speed Railway Crossing
p.142

Relationship between Particle Size and Martensitic Transformation in an Fe-30at%Ni Alloy
p.146

Spheroidization Behavior of Cementite in a High Carbon Steel
p.150

Influence of Silicon on the Spheroidization of Cementite in Hypereutectoid Bearing Steels
p.154

Ductile-to-Brittle Transition Behavior of High-Nitrogen 18Cr-10Mn-0.35N Austenitic Steels Containing Ni and Cu
p.158

Role of Microstructure in Susceptibility of X70 Pipeline Steel to Hydrogen Embrittlement
p.162

HomeMaterials Science ForumMaterials Science Forum Vols. 654-656Relationship between Particle Size and Martensitic...

Relationship between Particle Size and Martensitic Transformation in an Fe-30at%Ni Alloy

Abstract:

We have investigated the effect of particle size on martensitic transformation by using single crystalline specimens of an Fe-30at%Ni alloy by scanning electron microscope (SEM) observation, X-ray diffraction(XRD), magnetic susceptibility and magnetization measurements. As a result, we have found that an athermal martensitic transformation changes to an isothermal martensitic transformation with decreasing particle size. Considering the result of the TTT diagram, we have estimated the driving force for the martensitic transformation and the cluster size for nucleation of the isothermal martensitic transformation based on the model previously proposed.