Results 101 to 110 of about 18,897 (273)

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

Processing and Ductile-Brittle Transitions in PM Manganese Steels [PDF]

, 2005
YesBrittleness in manganese steels can be associated with processing in a "wet¿ [micro]climate resulting in the formation of continuous oxide networks.
Cias, A., Mitchell, Stephen C.
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

Austenite grain growth in tailored cooling rate experiment designed by numerical simulation for peritectic steel

Journal of Materials Research and Technology
The heat transfer model for steel solidification in Al2O3 crucial and permanent mold by finite element method was developed and validated by temperature measurement.
Peng Lan, Huasong Liu, Jiaquan Zhang, Yifan Lu, Lirui Zhang   +4 more
doaj   +1 more source

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

Study of austenite grain growth and recrystallization behavior in pipeline steels containing niobium

Materials Research Express
The austenite grain growth and recrystallization behaviors of three pipeline steels with different Nb contents were investigated through reheating and thermal simulation compression experiments.
Fengliang Tan, Jinbiao Cui, Ning Liu, Li Wang, Jiansheng Chen, Shiwei Tian, Yantao Li   +6 more
doaj   +1 more source

Mechanical Properties Improvement of Low Carbon Steel by Combined Heat Treatments [PDF]

, 2001
The improvement of the Mechanical properties of the low Carbon steel and increasing its strength, was the goal of some heat treatment technologies developed in the last twenty years. One of these technologies is the Rapid Heat Treatment (RHT), by which
Abou-Jahjah, J., Dobránszky, János
core  

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

The Influence of Deoxidation Practice on the As-Cast Grain Size of Austenitic Manganese Steels

Metals, 2017
The effect of in-situ precipitating particles on the grain size of Al-Ti-treated and untreated Hadfield steel cast in a pilot scale environment was studied. Hadfield steel was melted in an induction furnace and cast in Y-Block samples. Light Optical Microscopy (LOM) and the intercept method were utilized for the grain size measurements.
Dimitrios Siafakas, Taishi Matsushita, Åsa Lauenstein, Johan Ekengård, Anders Jarfors   +4 more
openaire   +3 more sources

Additive Manufacturing of Hot‐Work Tool Steel by In Situ Alloying Using Laser Powder Bed Fusion and Directed Energy Deposition—Strategies to Improve Chemical Homogeneity

steel research international, EarlyView.
To support future alloy development a powder mixture is processed by laser additive manufacturing. The powder mixture containing Mo‐ and W‐rich tracers is processed by powder bed fusion using single and double laser exposure and by directed energy deposition which provides drastically enlarged melt pools.
Felix Großwendt, Sebastian Weber, Jonathan Lentz   +2 more
wiley   +1 more source