Low Temperature Toughness of Carbon-free 11Ni-Mo Steels
スポンサーリンク
概要
- 論文の詳細を見る
The effects of microstructures and molybdenum alloying on low temperature toughness have been studied in carbon free 11Ni-O-4Mo steels reheated below Af temperature after double normalizing. In spite of very low content of C, N, P, S and other impurities in these steels, temper embrittlement appeared in reheating or slow cooling in the range of 450° to 525°C. To inhibit this embrittlement the following two methods were shown to be effective. One was using the substructure which had a small amount of fresh martensite and the other was alloying one percent molybdenum. There was the optimum molybdenum content, since at higher contents age-hardening and solution hardening by this element became the inevitable cause of the low temperature brittleness. Further, it was concluded that the 1Mo steel having a small amount of fresh martensite showed excellent properties in both strength at room temperature and toughness at -196°C. This steel had also a good toughness at about -250°C.
- The Iron and Steel Institute of Japanの論文
The Iron and Steel Institute of Japan | 論文
- The Evolution of Precipitates in Nb-Ti Microalloyed Steels during Solidification and Post-solidification Cooling
- Short Contribution to the Study of the Washing Effect in Electromagnetic Stirrers for Continuous Casting
- Nitrogen Bearing Martensitic Stainless Steels : Microstructure and Properties
- A Two-dimensional Finite Element Thermomechanical Approach to a Global Stress-Strain Analysis of Steel Continuous Casting
- Transformation Behavior and Microstructures in Ultra-low Carbon Steels