Results 71 to 80 of about 24,290 (250)

Recycling‐Induced Copper Contamination of a 42CrMo4 Quench and Tempering Steel—Scaling and Susceptibility to Hot Shortness

steel research international, EarlyView.
In this study, the susceptibility to copper‐induced hot shortness of the alloy 42CrMo4 is investigated by different hot tensile tests, as well as by a detailed analysis of the formed oxidation products. While an enrichment of metallic copper and a penetration of the grain boundaries are observed, no critical reduction of the tensile test properties can
Alexander Gramlich, Sindokht Shayan, Nima Babaei, Aleksei Klubakov, Lena Patterer, Ulrich Krupp, Hauke Springer   +6 more
wiley   +1 more source

Hydrogen diffusion in 0.2–0.4wt% carbon martensitic and martensitic-austenitic advanced high-strength steels

Next Materials
Hydrogen-tolerant steels are a central part of enabling the green transition and utilisation of steels with ever higher strength levels. However, hydrogen embrittlement is a critical challenge for advanced high-strength steels (AHSSs) with martensitic ...
Niko Aho, Renata Latypova, Sumit Ghosh, Pekka Kantanen, Mahesh Somani, Jukka Kömi, Sakari Pallaspuro   +6 more
doaj   +1 more source

Functionally Graded Martensitic Stainless Steel

IOSR Journal of Mechanical and Civil Engineering, 2014
Functionally graded materials (FGM) are defined as an anisotropic material whose physical properties vary continuously throughout the volume, either randomly or strategically, to achieve desired characteristics or functionality. The aim of this project is to perform a modal analysis to determine the natural frequencies and mode shapes of a FGM using ...
S Tharaknath, H Dineshkumar, G Purushothaman, C Kannadhasan, S Silambarasan   +4 more
openaire   +1 more source

Numerical thermo-elasto-plastic analysis of residual stresses on different scales during cooling of hot forming parts [PDF]

, 2019
In current research, more and more attention is paid to the understanding of residual stress states as well as the application of targeted residual stresses to extend e.g. life time or stiffness of a part.
Brands, D., Scheunemann, L., Schröder, J., Uebing, S.   +3 more
core  

Alteration of Phase Transformation Behavior and Prior Austenite Grain Structure Due to Elevated Tramp Element Concentrations in a Hypoeutectoid Steel

steel research international, EarlyView.
The phase transformation behavior of a hypoeutectoid steel is studied in comparison with alloys containing higher concentrations of tramp elements, simulating high recycling rates. The examination of microstructures reveals that the tramp elements facilitate the formation of displacive phases along with retained austenite.
Lukas Hatzenbichler, Marek Gocnik, Phillip Haslberger, Matthew Galler, Andreas Stark, Oleksandr Glushko, Jozef Keckes, Ronald Schnitzer   +7 more
wiley   +1 more source

Nanoscale austenite reversion through partitioning, segregation, and kinetic freezing: Example of a ductile 2 GPa Fe-Cr-C steel

, 2012
Austenite reversion during tempering of a Fe-13.6Cr-0.44C (wt.%) martensite results in an ultrahigh strength ferritic stainless steel with excellent ductility.
Choi, P., Jiménez, J. A., Ponge, D., Raabe, D., Wittig, J., Yuan, L.   +5 more
core   +1 more source

Electrochemical hydrogen charging of duplex stainless steel [PDF]

, 2019
This study evaluates the electrochemical hydrogen charging behavior and interaction between hydrogen and the microstructure of a duplex stainless steel. A saturation level of approximately 650 wppm is reached after 10 d of charging. The data are compared
Claeys, Lisa, De Graeve, Iris, Depover, Tom, Verbeken, Kim   +3 more
core   +2 more sources

Influence of Higher Tramp Element Level on the Weldability of Automotive Steels

steel research international, EarlyView.
The use of green recycled steels is constantly expanding in the automotive industry. The increase in tramp elements resulting from the recycling of steel is problematic. Tramp elements can lead to a negative influence on the weldability. To understand the influence, the welding properties of three green steels are characterized. The potential limits of
Elias Gebhard Vogt, Patrick Veyel, Lars Gebel, Christian Meyer, Robert Thomas, Michael Thomas, Christoph Herrmann   +6 more
wiley   +1 more source

Effects of Ce addition on inclusion modification in martensitic stainless steel

Materials Research Express
The control of inclusion features, i.e., chemical composition, distribution, quantity, and size, is in high demand for stainless steels to achieve good surface quality, pitting corrosion resistance, and mechanical properties.
Lei Xing, Haiyan Wang, Xueyun Gao, Fangcheng Tian, Hongling Lin, Haixin Yin   +5 more
doaj   +1 more source

Influence of Heat Treatment and Scan Rotation on the Microstructure of Hot Work Tool Steel Manufactured using Laser Powder Bed Fusion

steel research international, EarlyView.
The study investigates the influence of heat treatment and scan rotation on the microstructure of a modified H13 tool steel manufactured using laser powder bed fusion. Key findings include the refinement of prior austenite grains (PAGs) due to recrystallization and carbide pinning, and the significant impact of scan rotation on the size distribution of
Negar Panahi, Fengxiang Lin, Christos Oikonomou, Mikael Grehk   +3 more
wiley   +1 more source