Static and Dynamic Strain Aging at High Temperatures in 304 Stainless Steel
スポンサーリンク
概要
- 論文の詳細を見る
Commercial 304 austenitic stainless steel was deformed at high temperatures. The experiments involved 2-hit hot compression and multi-pass hot torsion testing; the experimental variables included strain rate, temperature and interpass time. The relationship between these variables and the degree of interpass softening produced unexpected results. Specifically, the normal effect of temperature on the static softening kinetics was reversed at intermediate interpass times: the fractional softening decreased with increasing temperature for these times. The diffusion kinetics and segregation mechanics of the substitutional impurities in the material, combined with the experimental results, suggest that the temporary non-equilibrium segregation of phosphorus (and/or sulphur) to dislocations is responsible for the observed behaviour. Additionally, the observed trend in strain rate sensitivity with increasing deformation temperature indicates that dynamic strain aging was taking place.
- 社団法人 日本鉄鋼協会の論文
- 2004-07-15
著者
-
Stewart G
Department Of Metals And Materials Engineering Mcgill University
-
Stewart G.
Department Of Metals And Materials Engineering Mcgill University
-
Jonas J.
Department Of Metals And Materials Engineering Mcgill University
-
Jonas J.
Department Of Materials Engineering Mcgill University
関連論文
- Mathematical Modeling of Mean Flow Stress during the Hot Strip Rolling of Nb Steels
- Mathematical Modeling of the Mean Flow Stress, Fractional Softening and Grain Size during the Hot Strip Rolling of C-Mn Steels
- Influence of Ferrite Rolling Temperature on Microstructure and Texture in Deformed Low C and IF Steels
- TEM Characterization of the Recrystallization Behaviour of Warm Rolled Low Carbon Steels Containing Chromium during the Early Stages of Annealing
- Influence of Ferrite Rolling Temperature on Grain Size and Texture in Annealed Low C and IF Steels
- Mathematical Modelling of Mean Flow Stress during the Hot Strip Rolling of Multiply-alloyed Medium Carbon Steels
- Distinctive Aspects of the Physical Metallurgy of Warm Rolling
- Prediction of Interpass Softening from the Strain Hardening Rate Prior to Unloading
- Modelling Texture Change during the Static Recrystallization of a Cold Rolled and Annealed Ultra Low Carbon Steel Previously Warm Rolled in the Ferrite Region
- Dynamic Strain Aging and the Wire Drawing of Low Carbon Steel Rods
- Spreadsheet Modelling of Grain Size Evolution during Rod Rolling
- Kinetics and Critical Conditions for the Initiation of Dynamic Recrystallization in 304 Stainless Steel
- FEM Simulation of Deep Drawing of Textured Aluminum Sheets Using Anisotropic Fourth-Order Strain-Tate Potential
- Static and Dynamic Strain Aging at High Temperatures in 304 Stainless Steel
- Effect of Silicon on the Interaction between Recrystallization and Precipitationin Niobium Microalloyed Steels
- Effect of Initial Grain Size on the Static Recrystallization Kinetics of Nb Microalloyed Steels
- Static Recrystallization of Nb and Nb-B Steels under Continuous Cooling Conditions
- Ultrasonic Prediction of r-value in Deep Drawing Steels.
- Gibbs energies of formation of TiS and Ti4C2S2 in austenite.
- Effect of Controlled Rolling on Texture Development in a Plain Carbon and a Nb Microalloyed Steel.
- Influence of Dynamic Recrystallisation on the Tensile Ductility of Steels in the Temperature Range 700 to 1150.DEG.C..