Metallurgical processes and the mechanism of underwater wet cutting of steel with powder wire

2021 ◽  
pp. 45-50
Author(s):  
S.G. Parshin ◽  
A.M. Levchenko ◽  
Penfeu Wang
Keyword(s):  
Powder Wire ◽  
Metallurgical Processes

scholarly journals Uncovering the superior corrosion resistance of iron made via ancient Indian iron-making practice

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Deepak Dwivedi ◽  
Jitendra P. Mata ◽  
Filomena Salvemini ◽  
Matthew R. Rowles ◽  
Thomas Becker ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Materials Science ◽  
Scientific Explanation ◽  
Central India ◽  
Protective Mechanisms ◽  
Excellent Corrosion Resistance ◽  
Metal Treatment ◽  
Indian Tribes ◽  
Superior Corrosion Resistance ◽  
Metallurgical Processes

AbstractAncient Indian iron artefacts have always fascinated researchers due to their excellent corrosion resistance, but the scientific explanation of this feature remains to be elucidated. We have investigated corrosion resistance of iron manufactured according to traditional metallurgical processes by the Indian tribes called ‘Agaria’. Iron samples were recovered from central India (Aamadandh, Korba district, Chhattisgarh). Iron artefacts are investigated using a range of correlative microscopic, spectroscopic, diffraction and tomographic techniques to postulate the hidden mechanisms of superlative corrosion resistance. The importance of manufacturing steps, ingredients involved in Agaria’s iron making process, and post-metal treatment using metal-working operation called hot hammering (forging) is highlighted. This study also hypothesizes the probable protective mechanisms of corrosion resistance of iron. Findings are expected to have a broad impact across multiple disciplines such as archaeology, metallurgy and materials science.

Melting Temperature of FeO under Pressure

2013 ◽  
Vol 717 ◽  
pp. 184-187
Author(s):  
Shuai Zhang ◽  
Lei Chen
Keyword(s):  
Phase Diagram ◽  
Melting Temperature ◽  
Surface Stress ◽  
Clapeyron Equation ◽  
Metallurgical Processes ◽  
Pressure Phase ◽  
Effect Of Surface ◽  
Volume Difference

The melting temperature-pressure phase diagram [Tm(P)-P] for wustite (FeO) is predicted through the Clapeyron equation where the pressure-dependent volume difference is modeled by introducing the effect of surface stress induced pressure. FeO plays an important role in many metallurgical processes and in the Earths mantle mineralogy. FeO is also of great interest in the field of state solid physics and chemistry because of its electrical, magnetic, structural and non-stoichiometric properties.

Surface Phenomena in Metallurgical Processes

Physics Today ◽  
1965 ◽  
Vol 18 (10) ◽  
pp. 76-78
Author(s):  
A. I. Belyaev ◽  
Daniel B. Butrymowicz
Keyword(s):  
Surface Phenomena ◽  
Metallurgical Processes

Microstructure Modelling of Solid-State Transformations in Low-Alloy Steel Production

2012 ◽  
Vol 706-709 ◽  
pp. 2782-2787 ◽  
Author(s):  
Maria Giuseppina Mecozzi ◽  
C. Bos ◽  
J. Sietsma
Keyword(s):  
Dual Phase Steel ◽  
Three Dimensional ◽  
Steel Production ◽  
Transformation Kinetics ◽  
Band Formation ◽  
Cellular Automata Model ◽  
Cold Rolled ◽  
Microstructural Band ◽  
Mn Concentration ◽  
Metallurgical Processes

In this work the formation of microstructural banding in a dual-phase steel is investigated by using a three-dimensional cellular automata model for phase transformations. Originally developed for describing the metallurgical processes occurring during the annealing stage of cold-rolled strips, this model is presently applied to investigate microstructural-band formation during the austenite-to-ferrite transformation kinetics during cooling after hot rolling. The recent incorporation in the model of an inhomogeneous concentration of Mn, the alloying element most responsible for the development of microstructural banding, and the local nucleation behaviour dependent on the Mn concentration allows the study of the effect of material and process parameters on the banding formation.

Metallurgical processes for scandium recovery from various resources: A review

2011 ◽  
Vol 108 (1-2) ◽  
pp. 100-108 ◽  
Author(s):  
Weiwei Wang ◽  
Yoko Pranolo ◽  
Chu Yong Cheng
Keyword(s):  
Metallurgical Processes
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