Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Waldo E. Stumpf"'
Publikováno v:
Metallurgical and Materials Transactions A. 53:1322-1335
Publikováno v:
Journal of Materials Engineering and Performance. 29:330-341
A simple mathematical model has been developed which describes the flow curve behavior up to the peak true stress or a true strain of 0.6 in unstable austenite. The hot working behavior was analyzed by compression tests over a temperature range of 75
Publikováno v:
Transactions of Nonferrous Metals Society of China. 29:2078-2089
Thermodynamic calculation of the two-phase Ti alloy was completed using CompuTherm Pandat™ and Ti data base, followed by isothermal compression of Ti6Al4V (Grade 5), with an initial colony lamellar structure that was performed in the (α+β) and β
Publikováno v:
Materials Science Forum. 941:46-51
The influence of roughing strain on the extent of austenite recrystallisation in plain carbon steel and Nb-Ti-V microalloyed steel was investigated. Reheating and roughing simulations were conducted on a deformation dilatometer using industrial heati
Publikováno v:
MRS Advances. 3:1985-2002
Multi-pass compression tests were carried out on the Gleeble-1500D® and Gleeble-3800TM® thermo-mechanical simulators to investigate the effect of temperature, strain rate and inter-pass time on the development of the texture in ferritic stainless s
Publikováno v:
Journal of Materials Engineering and Performance. 26:5217-5227
This work extends the application of the well-established Estrin and Mecking (EM) work-hardening model in unstable low temperature austenite region. The interaction between work hardening, recovery and softening attributed to recrystallization and tr
Publikováno v:
Journal of Materials Engineering and Performance. 26:5294-5303
The effects of a roughing pass in hot rolling simulations were assessed in VN and Nb-Ti steels. Continuous cooling phase transformation temperatures, flow curves, softening mechanisms (dynamic transformation DT and dynamic recrystallization DRX), and
Autor:
Waldo E. Stumpf
Publikováno v:
Journal of the Southern African Institute of Mining and Metallurgy. :893-902
South Africa recently announced a resurgence in its commercial nuclear power programme. The implications for the development of the necessary high-level manpower within South Africa's tertiary educational system and its national research and developm
Publikováno v:
Journal of the Southern African Institute of Mining and Metallurgy. :981-986
The authors gratefully acknowledge the financial contribution provided by the Advanced Metal Initiative (AMI) of the Department of Science and Technology (DST) through the Ferrous Metals Development Network (FMDN), and Columbus Stainless (Middelburg,
Publikováno v:
Journal of the Southern African Institute of Mining and Metallurgy. :973-980