Alloy Systems for Heat Treated Sintered Steels∗
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H. Danninger
Abstract
Sintered steel parts are increasingly used for applications subjected to high mechanical loads and therefore have to be heat treated frequently. For manufacturing, the close relationship between composition, esp. the alloy elements used, alloying variant, compactibility and sinterability as well as heat treating response is a characteristic feature. Compared to wrought steels, significantly more parameters have to be considered and defined. On the other hand, the powder metallurgy route offers more freedom regarding material design and property profile. Advanced alloy systems using Cr and/or Mn are demanding on sintering but offer economical and technical advantages, also for heat treatment.
Kurzfassung
Sinterstahl-Formteile werden heute immer mehr auch für hohe mechanische Belastungen eingesetzt und demzufolge zunehmend wärmebehandelt. Bei ihrer Herstellung ist die sehr enge Verflechtung zwischen Zusammensetzung, vor allem Wahl der Legierungselemente, Legierungsvariante, Press- und Sinterverhalten sowie Wärmebehandlungstechnik charakteristisch. Es müssen gegenüber schmelzmetallurgischen Stählen sehr viel mehr Parameter definiert und berücksichtigt werden; andererseits bietet die pulvermetallurgische Route viel Freiheit bei der Gestaltung des Materials und des Eigenschaftsprofils. Moderne Legierungssysteme mit Cr und/oder Mn stellen hohe Ansprüche insbesondere an den Sinterprozess, bieten aber andererseits sowohl ökonomische als auch technische Vorteile, vor allem auch bei der Wärmebehandlung.
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© 2019, Carl Hanser Verlag, München
Artikel in diesem Heft
- Praxis-Informationen/From and for Practice
- AWT Info
- HTM-Praxis
- Kurzfassungen/Abstracts
- Kurzfassungen
- Inhalt/Contents
- Inhalt
- Gratulation
- For the 80th birthday of Prof. habil. Dr.-Ing. Johann Grosch
- Scientific Contributions/Fachbeiträge
- Alloy Systems for Heat Treated Sintered Steels∗
- Early Stages of Precipitate Formation in a Dual Hardening Steel∗
- Fine Grain Resistance of Steel 20NiMoCr6-5+Nb (Material No. 1.6757) during Case Hardening depending on Cold Massive Forming∗
- Nitriding of Rolling Contact Races
- Comparative Studies on Electron Beam and Laser Beam Welding of QT-Steel and Structural Steel
Artikel in diesem Heft
- Praxis-Informationen/From and for Practice
- AWT Info
- HTM-Praxis
- Kurzfassungen/Abstracts
- Kurzfassungen
- Inhalt/Contents
- Inhalt
- Gratulation
- For the 80th birthday of Prof. habil. Dr.-Ing. Johann Grosch
- Scientific Contributions/Fachbeiträge
- Alloy Systems for Heat Treated Sintered Steels∗
- Early Stages of Precipitate Formation in a Dual Hardening Steel∗
- Fine Grain Resistance of Steel 20NiMoCr6-5+Nb (Material No. 1.6757) during Case Hardening depending on Cold Massive Forming∗
- Nitriding of Rolling Contact Races
- Comparative Studies on Electron Beam and Laser Beam Welding of QT-Steel and Structural Steel
