The science, art, or technology dealing with processes involved in the separation of metals from their ores, the technique of making or... | Contact experts in Metallurgy to get answers
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Questions related to Metallurgy
The attached figure is taken from 'Dislocations and their role in strengthening' by James CM Li in 'The Strengthening of Metals' (ed.) Donald Peckner. It shows an edge dislocation moving on...
17 January 2018 2,813 8 View
what is the disadvantages of ladle or furnace lining demolition by robots or something else?
12 November 2017 2,553 3 View
I am calculating ratio of FeO: Fe2O3 in Basic Oxygen Steelmaking slag CaO-SiO2-FeO-Fe2O3-MgO-Al2O3 based on the reaction 2FeO + 1/2O2 = Fe2O3, and equilibrium constant of this reaction. I got the...
27 July 2017 412 5 View
I have prepared an etching solution of 60% HCl and 40% HNO3 according to ASM Handbook of metallography. after only 5 seconds of etching, heavy pitting occurs on the samples. the concentrations of...
27 July 2017 2,178 7 View
I need to know which materials required for the development of advanced materials should be abundantly available in the country with minimum important dependence. I need to replace aluminium alloy...
20 July 2017 984 5 View
Do you know if there are standards concerning the maximum limits for content of non metallic inclusions, particularily in austenitic stainless steel? Or it is enough for steel suppliers to make...
03 July 2017 366 3 View
Back up rolls of hot strip mill need to be changed.After rolling of how much tons of steel they should be changed?
24 June 2017 885 1 View
I am working on an experimental project in-which I use an induction furnace to melt duplex stainless steel and Nitrogen-containing ferrochromium to increase the Nitrogen in my material. 1-How I...
24 June 2017 7,971 3 View
suppose we take aluminium, we fabricate aluminium metal matrix composites by any process by adding any ceramic material like SiC, Al2O3, etc.
10 June 2017 2,651 6 View
I know that the CSL boundaries in fcc and bcc structure are different. For example, Sigma 3 in fcc is 60degree, but that in bcc is 70.5. However, I've seen analyses of the...
07 June 2017 8,054 3 View
Hi, It would be really good if someone could share their expertise of etching (etchant & method) to reveal the microstructure of austenitic grain boundaries of Medium Mn steels (0.3% C,...
05 June 2017 3,584 6 View
I am looking for the recommendations on how to prevent Fe pick-up in the melting process of Magnesium alloy. The molten metal is held in the mild steel crucible which should maintain temperature...
05 June 2017 1,803 4 View
Generally, BCC metals show a Ductile-Brittle Transition phenomenon as decreasing temperature. A main cause is that the temperature dependency of yield strength is large, thus the yield strength...
05 June 2017 7,994 2 View
We want to do a metallographic analysis on CrCo alloys.
05 June 2017 5,745 3 View
The history of precipitation hardening of aluminium alloys goes back to 1906 when A. Wilm discovered that a rapidly cooled (quenched from a high temperature ~ 550°C into cold water) Al - Cu - Mg...
04 June 2017 6,444 2 View
Hi friends Generally weight gain in oxidation process but my alloys showing weight loss in oxidation process after 50 hr holding at 500oC.
01 June 2017 3,189 1 View
high hardenability and high Carbon percentage are not desirable for successful welding why?
22 May 2017 2,948 2 View
I have completed my dry sliding wear experimental analysis using RSM tool..Now i need an expert to go through my paper and give suggestions based on it. I have attached my paper for your...
11 May 2017 3,670 1 View
I'm trying to weld aluminium and steel with short impulses (2, 3, 4 and 5) of high current (25, 30, 35, 40 kA), but no success at the moment. Does anybody has found any good results?
04 May 2017 6,227 2 View
i want to know the oxide content and the type of oxides like Al2O3, MgO that could be present in the alloy
10 April 2017 4,890 1 View
C(z)=Cs-JsZc/D (1-e-z/zc), I want to fit this model to my soil carbon concentrations among different soil depths and obtain Cs, Js/D and Zc parameters. This model first introduced by Wynn et al.,...
07 April 2017 3,107 3 View
at 0.8% c above 723*C we have steel transforming from ferrite and cementite to austenite. But how do they obtain austenitic steel at room temperature
03 April 2017 7,537 3 View
How alloying elements like Si, Mn change Liquiduds and Peritectic temperature, ml, K0, concentrations...
31 March 2017 10,091 4 View
Hello, I am confused by Schmid Factor analysis during tension and compression. Is there any difference between compression and tension for Schmid Factor? I am testing compression response of...
26 January 2017 3,476 2 View