Stainless steel has been frequently used for temporary implants but its use as permanent implants is restricted due to its low pitting corrosion resistance. Nitrogen additions to these steels improve both mechanical properties and corrosion resistance, particularly the pitting and crevice corrosion resistance. Many reports concerning allergic reactions caused by nickel led to the development of...

The mechanical properties of the high-strength low-alloy pipeline steels were mainly controlled by the subsequent phase transformations after rolling. The influence of hot uniaxial compression on the phase transformation of acicular ferrite was explored by viewing of the deformation degree, the deformation temperature, and the strain rate. The results show that the increase of deformation amoun...

NOT AVAILABLE 11:00 AM RAPID PREDICTION OF TIME-TEMPERATURE-TRANSFORMATION DIAGRAMS OF LOW AND MEDIUM CARBON MULTICOMPONENT ALLOY STEELS BY A COMPUTER EXPERT SYSTEM: Zhenbo Zhao1; Derek O. Northwood2; Cheng Liu3; Yunxu Liu3; Qihui Zhu3; 1University of Windsor, Mech. & Mats. Eng., 401 Sunset Ave., Windsor, Ontario N9B 3P4 Canada; 2Ryerson Polytechnic University, Eng. & Applied Sci., 350 Victoria...

1 his paper provides a U-J;P,G work for selecting heat exchangers materials especially those used in nuclear power plants. Typical examples of materials selection for heat exchanger tubing of nuclear power plants and condensers are presented. The paper brings out also, the importance of continued intensive R & D in materials in order to enhance the reliability and reduce cost by improving upon ...

Steel 2205 is one of the most famous duplex stainless steels. The microstructure of this steel composed of ferrite and austenite in similar amount. Therefore, in order to improve mechanical properties through microstructure, thermo mechanical processes such as controlled hot rolling and forging should be applied. It is not possible to employ the usual heat treatment. It shows the importance of ...

  Abstract   Recovery and recrystallization phenomena and effects of microalloying elements on these phenomena are of great importance in designing thermomechanical processes of microalloyed steels. Thus, understanding and modeling of microstructure evolution during hot deformation leads to optimize the processing conditions and to improve the product properties.   In this study, finite element...

The deformation behavior and the constitutive description of materials are important in design numerical simulation manufacturing processes. In this work, rheological two quenchable boron steels was derived range interest for Press Hardening (PH) process. For study, following steps were performed: (i) Design specimen geometry adopted during hot tensile tests Gleeble®3180 physical simulator. (ii...

Low-density steels are considered an attractive potential replacement for conventional steel in industries such as the automotive sector. However, there are several issues that need to be overcome before they become commercially useful grades. A significant constraint is in their processability, for example, a large as-cast grain size means these steels are prone to hot cracking. This paper exp...