Precipitation and Generation of Dislocations in an Al-Mg Alloy
スポンサーリンク
概要
- 論文の詳細を見る
Some features of precipitation in an Al-8.5 wt.% Mg alloy were investigated by means of transmission electron microscopy. Needle-like (or rod-like) precipitates of various orientations and plate-like precipitates on both {100} and some planes deviated from {100} towards {130} were present in the specimens aged at 150℃ and 200℃. At an early stage of ageing, dislocation loops were observed around some small precipitates, which were formed by the annihilation of the excess quenched-in vacancies. During the growth of precipitates, a large number of dislocations were generated around the precipitates. Some possible mechanisms of the dislocation generation in the last case were discussed, considering the nature of stress-field around the precipitates. Also, some movements of dislocations during growth of precipitates were observed by heating the thin foils in the electron microscope. The distribution of dislocations observed in the aged bulk specimens can be explained from such movements of dislocations during ageing.
- 社団法人日本物理学会の論文
- 1965-02-05
著者
-
Koda Shigeyasu
The Research Institute For Iron Steel And Other Metals
-
Koda Shigeyasu
The Research Institute Iron Steel And Other Metals Tohoku University
-
MATSUURA Keisuke
The Research Institute Iron, Steel and Other Metals Tohoku University
-
Matsuura Keisuke
The Research Institute For Iron Steel And Other Metals
-
Matsuura Keisuke
The Research Institute Iron Steel And Other Metals Tohoku University
関連論文
- Direct Observations of the Interaction between Dislocations and Precipitates in an Aluminium-Silicon Alloy
- Precipitation and Generation of Dislocations in an Al-Mg Alloy
- Precipitation in Quenched and Aged Beryllium Containing Small Amounts of Iron
- Some Mechanical Properties of Powder Extrusions of Magnesium Alloys
- Low Temperature Ultrasonic Attenuation in Germanium
- Low Temperature Ultrasonic Attenuation in Cu-Al Alloys
- Low Temperature Ultrasonic Attenuation in Magnesium and Magnesium Alloys
- Ultrasonic Attenuation in Magnesium at Low Temperatures
- Behaviour of Inclusions in Beryllium under Compression at Room Temperature
- Anomalous Change of Electrical Resistivity by Plastic Deformation in a Copper-Germanium Solid Solution Alloy
- Deformation Twinning and Stacking Fault Parameter in Cu-Ni and Cu-Mn Alloys
- The Effect of Plastic Deformation on the Cluster Formation in an Al-Cu 4% Alloy
- The Effect of θ' Phase on the Plastic Deformation of an Age-Hardenable Al-Cu 4% Alloy
- Precipitation and Generation of Dislocations in an Al-Mg Alloy
- Interaction between Dislocations and θ' Precipitates in an Aluminium-Copper Alloy
- Interface Dislocations and Glide Dislocations on θ' Precipitates in an Al-4% Cu Alloy
- Direct Observation of the Interaction of Dislocations with θ' Precipitates in an Aluminium-3.8 wt.-% Copper Alloy
- On the Interaction between Dislocations and Decomposition Products in an Al-4% Cu Alloy
- Direct Observation of the Multiplication of Dislocations in a Thin Foil of an Aluminium-Silver Alloy
- Stacking Faults of Copper-Germanium Alloys
- The Role of the Dislocation Nucleation Around Precipitates in the Mechanical Properties of a Fe-C Alloy
- Precipitation in Beryllium-Iron Alloys