Web19 Feb 2024 · Hot plastic working behavior and microstructure evolution were investigated during a production process of four medium-Mn steels, which differed in Mn (3 and 5%) and Nb contents. The production process started with casting, followed by hot forging, rough hot-rolling and concluded with final thermomechanical processing, which was performed … Web10 Apr 2024 · The new generation of high-strength steels such as dual-phase (DP), high-strength and low-alloy (HSLA), quench and partitioning (Q&P), martensitic, and bainitic steels, with complex and engineered microstructures, has been driving the need to develop novel welding approaches to reduce or even avoid significant losses of mechanical …
Hydrogen Embrittlement of Ultra High Strength Low Alloy TRIP …
Web15 Mar 2024 · A new approach to the production of nanostructures in steels, consisting in the control of the isothermal phase transformation at temperatures below 300℃, has led to the development of steels with a microstructure of carbide-free bainitic ferrite and retained austenite [1,2,3].Nanobainitic steels are characterized by a unique combination of ultra … WebThe residual austenite in the microstructure of high carbon bainitic steels ensures the forming ability besides the high strength. Maximum tensile strength is 1650 MPa and elongation is around 30%. ... Schvinn, V. und Tacke, K. Characterization and Quantification of Complex Bainitic Microstructures in High and Ultra-High Strength Linepipe ... thyssen dynamic components
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Web29 Mar 2024 · The common application of the TTT diagram of steel is to understand elevated transformation is alloy steel which follows non-equilibrium cooling and requires important microstructural features. For history, it should be noted that Pearlitic and Bainitic bay in the TTT diagram of steel are identified and explained by Davenport and Bay ... Web1 Mar 2016 · A novel ultra-high-strength bainitic steel was designed. The analysis of its mechanical properties by quasistatic testing showed that upper bainitic steel exhibited an … Web26 Jun 2024 · The effect of heat input on the microstructure and compositional heterogeneity of welds of direct-quenched ultra high strength steel (Optim 960 QC) and duplex stainless steel (UNS S32205) was studied. ... it was found that an increase in heat input correlatively increased the proportional volume of bainitic to martensitic phases. … thyssen draht ag