User Settings
Open AccessArticle10.2320/matertrans1960.20.159

Electron Microscopy of the Premartensitic State in a β–Ni–Zn–Cu Alloy

Yūichiro Murakami,Sukeji Kachi-1979-01-01-Transactions of the Japan Institute of Metals
3PDF

TL;DRAbstract

The premartensitic state of the β-Ni31Zn48Cu21 alloy was studied by electron microscopy. Anomalies of the electron diffraction patterns taken of the alloy were well explained by considering the 〈110〉β streaking and the existence of two types of small particles with orthorhombic (distorted hcp) and fct structures, respectively. A mottled structure with tweed-like contrast was also observed. The small particles of the low temperature martensite phase (fct), which were observed in thin foil specimens of the alloy above the Ms temperature, were considered to be related with the preceding phenomena of the martensitic transformation.

Chat with Paper

AI Agents for this Paper

The premartensitic state of the β-Ni31Zn48Cu21 alloy was studied by electron microscopy. Anomalies of the electron diffraction patterns taken of the alloy were well explained by considering the 〈110〉β streaking and the existence of two types of small particles with orthorhombic (distorted hcp) and fct structures, respectively. A mottled structure with tweed-like contrast was also observed. The small particles of the low temperature martensite phase (fct), which were observed in thin foil specimens of the alloy above the Ms temperature, were considered to be related with the preceding phenomena of the martensitic transformation.

Keywords

AlloyMaterials scienceOrthorhombic crystal systemMartensiteCrystallographyFOIL methodElectron microscopeElectron diffraction

Chat

Click to start Chat