Results 91 to 100 of about 60,100 (278)

Droplet Fluctuations in the Morphology and Kinetics of Martensites

, 1996
We derive a coarse grained, free-energy functional which describes droplet configurations arising on nucleation of a product crystal within a parent. This involves a new `slow' vacancy mode that lives at the parent-product interface.
A. J. Bray, A. Roitburd, E. Ben-Naim, G. R. Barsch, G. R. Barsch, G. S. Bales, J. P. Hansen, L. Delaey, L. Landau, M. C. Mahato, M. Rao, M. Rao, M. V. Jaric, Madan Rao, P. C. Martin, P. M. Chaikin, S. Kartha, Surajit Sengupta, T. V. Ramakrishnan, W. S. Owen   +19 more
core   +2 more sources

Influence of Steel Recycling on Phase Transformation in Medium‐Manganese Third‐Generation Advanced High‐Strength Steels

steel research international, EarlyView.
On the pathway to climate‐neutral steel production, recycling fractions will necessarily increase over time. Since alloying elements will enrich progressively, as they cannot be removed economically from the melt, processes need to be adjusted.
Anindita Chakraborty, Radhakanta Rana, Ulrich Krupp, Alexander Gramlich   +3 more
wiley   +1 more source

Residual stress induced stabilization of martensite phase and its effect on the magneto-structural transition in Mn rich Ni-Mn-In/Ga magnetic shape memory alloys

, 2015
The irreversibility of the martensite transition in magnetic shape memory alloys (MSMAs) with respect to external magnetic field is one of the biggest challenges that limits their application as giant caloric materials.
Acet, M., Barman, S. R., Felser, C., Kushwaha, Pallavi, Liermann, Hanns-Peter, Pandey, Dhananjai, Sceibel, F., Singh, Sanjay   +7 more
core   +1 more source

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

Magneto-Structural Properties of Ni2MnGa Ferromagnetic Shape Memory Alloy in Magnetic Fields

Metals, 2013
The purpose of this review was to investigate the correlation between magnetism and crystallographic structures as it relates to the martensite transformation of Ni2MnGa type alloys, which undergo martensite transformation below the Curie temperature. In
Takuo Sakon, Yoshiya Adachi, Takeshi Kanomata   +2 more
doaj   +1 more source

Dynamic Scenarios of the Formation of Martensite with the {110} Habits in the Ni50Mn50 Alloy [PDF]

, 2019
Martensitic transformation B2–L10 in the ordered alloy Ni50Mn50, which occurs at comparatively high temperatures (980–920 K), is discussed with the use of dynamic concepts of the wave control of the threshold deformation.
Belosludtseva, E. S., Chashchina, V. G., Kashchenko, M. P., Kashchenko, N. M., Pushin, V. G., Uksusnikov A. N.   +5 more
core  

ON α- MARTENSITE NUCLEATION IN STEELS AND IRON ALLOYS

, 2023
I. V. Zolotarevsky, В. Е. Ольшанецкий   +1 more
openalex   +2 more sources

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

Deformation Behavior and Microstructure Evolution of NiTiCu Shape Memory Alloy Subjected to Plastic Deformation at High Temperatures

Metals, 2017
Deformation behavior and microstructure evolution of NiTiCu shape memory alloy (SMA), which possesses martensite phase at room temperature, were investigated based on a uniaxial compression test at the temperatures of 700~1000 °C and at the strain rates ...
Shuyong Jiang, Dong Sun, Yanqiu Zhang, Li Hu   +3 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