Sintering Behavior in Steels
A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Powder Metallurgy".
Deadline for manuscript submissions: closed (30 April 2022) | Viewed by 5216
Special Issue Editor
Interests: sintering of steels; thermal analysis for process control; sintering of special PM materials (aluminum alloys, heavy metal, copper alloys); additive manufacturing with binder-based methods
Special Issue Information
Dear Colleagues,
The sintering of PM steels has become increasingly challenging over the last 20 years. With the market entry of chromium alloyed steels, a new era in PM steels has started and moved from easy-to-sinter alloys Fe-Cu-Ni-Mo to more advanced systems alloyed with chromium and manganese. Basic scientific work has proven to be essential for understanding and establishing these alloys in industrial practice. However, the development must not stop now. There are still many questions open when these materials have to be sintered. Furthermore, there are still interesting alloying elements used in wrought metallurgy that are barely used in PM: silicon and vanadium, just to name the most prominent ones. These alloying elements show interesting properties, but their oxygen affinity makes them difficult to handle during the sintering process.
Apart from maximum mechanical properties, PM steels are also faced with other demands from the end-users.
- Low-cost alloys require the development of lean alloy concepts, and their sintering behavior has to be studied;
- Precision of parts is of extreme importance to reduce the costs of mechanical working after the sintering process, which means that the knowledge about dimensional behavior gains more and more importance to predict the changes during sintering. This becomes even more important when high-temperature sintering is applied.
- High-temperature sintering needs new furnace concepts to reach all the properties that are offered by the new alloying systems. Existing furnace concepts have to be developed further to obtain better control of the sintering process.
- Modelling tools for the sintering process are necessary to predict the dimensional behavior and the final mechanical properties.
Prof. Christian Gierl-Mayer
Guest Editor
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Keywords
- sintering behavior
- sintering of new alloy concepts
- parts precision
- high-temperature sintering
- modelling of sintering process
- lean alloy concepts
- furnace control
