Results 101 to 110 of about 4,806 (226)

Estimation of retained austenite in rotary slide valves

, 2003
In view of the large number of failures of rotary slide valves (RSVs) in the recent past, seven numbers of RSVs were withdrawn from service and were forwarded to the laboratory for estimation of retained austenite. Volume percent of retained austenite in
Sujata, M, Bhaumik, SK
core  

Synergistic enhancement of strength and ductility in Fe–10Mn-0.4C steel via short-time partitioning and cold rolling

Journal of Materials Research and Technology
In the conventional preparation of medium-manganese high-strength steel, hot rolling or cold rolling processes are primarily employed, interspersed with isothermal tempering to ensure the mechanical properties of the steel.
Ziwei Chen, Yan Wang, Yonghe Cai, Zhiping Xiong, Weiwei Zhu, Mingyu Li, Qihang Xiong, Guoqing Zu   +7 more
doaj   +1 more source

Effect of Oxygen and Nitrogen Oxide Gas Concentration on Corrosion of 310N Stainless Steel in Solar Salt at 600°C

Materials and Corrosion, EarlyView.
Schematic depicting corrosion layer formation and changes in stainless steel exposed to Solar Salt at 600°C for 1000 h under different atmospheres: (a) N2 accelerates salt decomposition, producing nitrite and oxide ions, causing severe corrosion. (b) Adding O2 reduces nitrite ions formation, resulting in less corrosion than N2 alone.
Sumit Kumar, Srinivasan Swaminathan, Rene Hesse, Wenjin Ding, Thomas Bauer   +4 more
wiley   +1 more source

Using the Principles of Image Analysis in the Assessment of the Proportion of Retained Austenite in the Case Hardened Layers

Archives of Metallurgy and Materials, 2017
Structures of carburized layers after the surface saturation process in gaseous, liquid or solid medium and after subsequent heat treatment (hardening and low-temperature tempering) consist mainly of high carbon plate martensite with a certain portion of
Váňová P., Sojka J., Kulová T., Jokešová K., Purtátor P., Spinu A.   +5 more
doaj   +1 more source

Experimental and Comparative Study of the Corrosion Behavior of Lean Duplex Stainless Steel in Seawater

Materials and Corrosion, EarlyView.
The localized corrosion behavior of lean duplex stainless steel EN 1.4062 is systematically compared with austenitic and higher‐alloyed duplex grades in natural seawater. A clear resistance ranking is established, highlighting EN 1.4062 as a cost‐effective alternative for limited marine exposure.
Mohammad Hassanzadeh, Nicolas Larché, Audrey Allion‐Maurer, Raf Dewil, Barbara Rossi   +4 more
wiley   +1 more source

Selective dissolution of retained austenite in nanostructured bainitic steels

, 2014
Nanostructured bainitic steels, containing bainitic ferrite laths and retained austenite films, formed at two different isothermal temperatures were compared for corrosion behavior in chloride-containing solution using electrochemical techniques.
Oluwole Kazum, Mathan Bobby Kannan, Ilana Timokhina, Shahin Khoddam, Kannan, Mathan Bobby, Khoddam, Shahin, Kazum, Oluwole, Timokhina, Ilana, Hossein Beladi, Hodgson, Peter, Beladi, Hossein, Peter Hodgson   +11 more
core   +1 more source

Chromium Salt: A Review of Salt Formation, Hygroscopic Properties, and Impact on 316 L Corrosion in Hydrochloric Acid

Materials and Corrosion, EarlyView.
This article examines the impact of externally introduced chromium compounds on the localized corrosion of 316 L stainless steel in acidic chloride environments such as hydrochloric acid. While the corrosion resistance of 316 L relies on the formation of a chromium‐rich passive oxide layer, industrial conditions may expose the steel to various chromium
Florence Lequien
wiley   +1 more source

Stability of retained austenite in TRIP-assisted

, 2004
A theory is developed for the quantitative representation of the strain induced transformation of retained austenite in low alloy, TRIP-assisted steels of the type developed for the automobile industry. It is possible, therefore, to calculate the fraction of austenite as a function of the plastic strain, chemical composition, deformation temperature ...
Sherif, M.Y., García Mateo, Carlos, Sourmail, Thomas, Bhadeshia, H. K. D. H.   +3 more
openaire   +1 more source

Microstructural and compositional analysis of debris in micro‐electrical discharge machining of Ni‐Ti shape memory alloy and stainless‐steel (SS304) Analyse der Mikrostruktur und Legierung von Abtragspartikeln beim Mikro‐Funkenerodieren von Ni‐Ti‐Formgedächtnislegierungen und Edelstahl (SS304)

Materialwissenschaft und Werkstofftechnik, EarlyView.
This research provides an extensive and sophisticated analysis of debris produced by micro‐electrical discharge machining processing of Ni‐Ti shape memory alloys and austenitic stainless steel (SS304) using brass electrodes. The research examines how different discharge energy levels controlled by capacitance and voltage affect debris shape and ...
M. Sarvar Rasheed, C. Rockinger, M. Merkel, A. Al Ahmari   +3 more
wiley   +1 more source

Application of Machine Learning in Heat Treatment Process Design of Carburized Steel

Materials Genome Engineering Advances, EarlyView.
To accelerate heat treatment design, we constructed a closed‐loop machine learning strategy involving multi‐source datasets and feature screening. The optimized model accurately predicts hardness and friction coefficients, successfully guiding the process optimization for two typical carburized steels with high experimental consistency.
Di Jiang, Yihao Zheng, Chunyang Luo, Xuefei Wang, Chi Zhang, Zhaodong Wang   +5 more
wiley   +1 more source