Results 91 to 100 of about 2,294 (204)

Failure Investigation of Alloy 625 Sockolets After Prolonged Service in an Ammonia Cracker Unit

Materials and Corrosion, Volume 77, Issue 8, Page 1375-1384, August 2026.
The failure of the sockolets was caused by intergranular cracking and fracture. The thick and highly brittle nitrided layer formed intergranular surface cracks, which propagated along grain boundaries into the base alloy substrate due to the presence of brittle Cr‐rich carbides. ABSTRACT Several sockolets of Alloy 625 operating at 540°C in contact with
Kamlesh Chandra, N. Naveen Kumar, Niraj Kumar   +2 more
wiley   +1 more source

Multiple morphologies and twin structure generated by a definite growth behavior of grain boundary M23C6 in tempered Fe–15Mn–3Al-0.7C steel

Journal of Materials Research and Technology
M23C6 carbide can precipitate simultaneously on both sides of austenite grain boundary in Fe–15Mn–3Al-0.7C steel tempered at 600 °C. In this paper, the morphology and growth behavior of M23C6 are studied by means of OM, SEM and TEM. The results show that
Zhenfeng Xu, Zhuoling Xia, Yang Xiong, Jingman Lu, Zhenzhen Guo   +4 more
doaj   +1 more source

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

steel research international, Volume 97, Issue 8, Page 4293-4305, August 2026.
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

Analysing mobility from austenite grain growth data

Journal of Physics: Conference Series, 2019
Abstract To obtain information on mobility of grain boundaries in austenite grain growth data has been collected from the open literature, to fit a physics-based grain growth model, which relates the mean grain size to the annealing time.
openaire   +1 more source

Recycling End‐of‐Life Solid Oxide Cell Interconnect Assemblies into Commercial‐Grade AISI 304 Stainless Steels

steel research international, Volume 97, Issue 8, Page 4363-4381, August 2026.
This study validates a recycling pathway for converting interconnect assemblies from end‐of‐life SOC stacks into commercial‐grade AISI 304 steels. Using scrap‐based steelmaking operations, austenitic cast steels with <4.0% δ‐ferrite are successfully produced.
Jeraldine Lastam, Shine‐Od Mongoljiibuu, Alexander Specht, Daniel Grüner, Dmitry Sergeev, Urs A. Peuker, Michael Müller, Ruth Schwaiger   +7 more
wiley   +1 more source

Thermodynamic Modeling of Sn–C and Fe–Sn–C Systems for the Tramp Elements Control in Steel Production

steel research international, Volume 97, Issue 8, Page 4246-4260, August 2026.
A CALculation of PHAse Diagrams thermodynamic modeling for Fe–Sn–C system is carried out. The model and the developed database can be used to calculate phase diagrams and thermodynamic properties of this system over wide temperature/composition range, and a part of a larger thermodynamic database for steel and alloy system, and effectively used to ...
Won‐Bum Park, Michael Bernhard, Youn‐Bae Kang   +2 more
wiley   +1 more source

Austenite Grain Growth Behavior of 40CrNiMoA Alloy Structural Steel

Teshugang
The austenite grain size is an important factor affecting the strength and toughness of 40CrNiMoA alloy structural steel. To fully explore the performance potential of 40CrNiMoA steel， it is necessary to investigate its grain evolution behavior during ...
Zhou Min, Gu Zuohong, Liu Ming, Tan Guangyao, Ran Rong   +4 more
doaj  

Theoretical Consideration on Formation and Control of Inclusions in Austenite during Thin Slab Concasting and Continuous Rolling

Teshugang, 2005
According to the solubility product theory of second phase in austenite, Ostward ripening theory, grain size control theory and precipitation strengthening theory, the probability for formation of inclusions in austenite and the inclusion size control ...
雍岐龙, 孙新军, 刘清友, 张晨, 李继康   +4 more
doaj  

The Influence of the Chemical Composition of Steel on the Limitation of Austenite Grain Growth in the High-Temperature, Low-Pressure Carburizing Process

Crystals
High-temperature low-pressure carburizing significantly reduces the time required to produce carburized layers. However, its application promotes austenite grain growth and, consequently, the formation of coarse acicular martensite.
Leszek Klimek, Konrad Dybowski
doaj   +1 more source

Increasing the Reuse Potential of High‐Strength Steels by Extending the Fatigue Life through Surface Treatments

steel research international, Volume 97, Issue 8, Page 4326-4336, August 2026.
Surface reconditioning through mechanical and electrochemical polishing is shown to extend the fatigue life of predamaged 42CrMo4 steel by over 12 times. By removing ≈100 μm of surface material, surface‐driven fatigue damage is mitigated. This study introduces a reuse potential metric to evaluate fatigue recovery and support sustainable steel reuse. To
Ayush Shrivastava, Oguz Gulbay, Srinivasa Raghavan Raghuraman, Marion Kreins, Fabian Weber, Peter Starke, Alexander Gramlich, Ulrich Krupp   +7 more
wiley   +1 more source