Results 71 to 80 of about 4,525 (236)

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Low-temperature carburizing improves hydrogen embrittlement resistance of cold worked 304 austenitic stainless steel

Journal of Materials Research and Technology
Cold deformation-induced martensitic transformation in 304 austenitic stainless steel (ASS) increases its susceptibility to hydrogen embrittlement (HE). In this study, low-temperature carburizing (LTC) was performed on cold worked 304 ASS.
Xiao Qin, Lars Nyborg, Huiqun Liu, Alexandra Bauer, Yu Cao   +4 more
doaj   +1 more source

Anomalies in carbon concentration determinations from nanostructured bainite [PDF]

, 2014
There are large discrepancies in the measured concentrations of carbon in the ferrite and austenite within nanostructured bainite and carbide-free bainitic steels in general.
Bhadeshia, HKDH
core   +2 more sources

Ferromagnetic and spin wave resonances in thin layer of expanded austenite phase [PDF]

Materials Science-Poland, 2014
Abstract Four samples of austenite coatings deposited by reactive magnetron sputtering on silicon substrate at four different temperatures and pressures were investigated by ferromagnetic resonance (FMR) method at room temperature. The expanded austenite phase S (γ N) layers with thickness in the 160–273 nm ...
Typek, J., Guskos, N., Zolnierkiewicz, G., Berczynski, P., Guskos, A., Baranowska, J., Fryska, S.   +6 more
openaire   +2 more sources

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

Advanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source

Molecular dynamics study on homogeneous and heterogeneous nanostructuring in massive nitrogen supersaturation into FCC-structured iron

Results in Materials
High nitrogen concentration supersaturation to the austenitic stainless steels, transforms their original structure into an expanded austenite (γN) layer with nanostructures and improves their mechanical properties. Molecular Dynamics simulation via MEAM
Abdelrahman Farghali, Tatsuhiko Aizawa, Junho Choi   +2 more
doaj   +1 more source

In-situ SEM investigation on stress-induced microstructure evolution of austenitic stainless steels subjected to cavitation erosion and cavitation erosion-corrosion

Materials & Design, 2022
This study investigated the effect of stress on the microstructure evolution of austenitic stainless steels (316L SS and 304 SS) subjected to cavitation erosion and cavitation erosion-corrosion.
Ye Tian, Hang Zhao, Rui Yang, Xiaomei Liu, Xiuyong Chen, Jiahao Qin, André McDonald, Hua Li   +7 more
doaj   +1 more source

Additive Manufacturing of NiTi Shape Memory Alloys for Elastocaloric Applications: A Review

Advanced Functional Materials, EarlyView.
Additive manufacturing enables complex NiTi architectures that overcome key limitations in elastocaloric refrigeration, including poor heat transfer and high mechanical work input. This review surveys recent advances in LPBF‐ and DED‐fabricated NiTi shape memory alloys for elastocaloric applications, highlighting process–structure–performance ...
Ignatius Andre Setiawan, Mohammad Mehrali, Jaka Tušek, Shiva Mohajerani, Xiebin Wang, Dermot Brabazon, Mohammad Elahinia, Mehrshad Mehrpouya   +7 more
wiley   +1 more source

Low-temperature plasma nitriding of sintered PIM 316L austenitic stainless steel [PDF]

Materials Research, 2014
This work reports experimental results on sintered PIM 316L stainless steel low-temperature plasma nitriding. The effect of treatment temperature and time on process kinetics, microstructure and surface characteristics of the nitrided samples were ...
Aércio Fernando Mendes, Cristiano José Scheuer, Ioanis Labhardt Joanidis, Rodrigo Perito Cardoso, Márcio Mafra, Aloísio Nelmo Klein, Silvio Francisco Brunatto   +6 more
doaj   +2 more sources

Composition, Phase Structure, and Corrosion of Nickel-Free and Nickel-Containing Stainless Steel Orthodontic Wires [PDF]

, 2014
Stainless steel wires have long been used in orthodontics. The austenitic stainless steel used in orthodontics contains approximately 18 wt% chromium and 8 wt% nickel. Nickel improves the corrosion resistance and helps maintain the austenite structure of
Rakalla, Amrita
core   +1 more source