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
2,496 views 637 posts
Questions related to Metallurgy
Porosity is very common in casting. How can we calculate safety factor by considering the effect of porosity on the design?
09 September 2016 563 4 View
Metallurgy
09 September 2016 9,675 0 View
Hi all an easy question: in tube hydroforming process when the axial feed parameter is for example 6mm ; is it mean that we have 6mm axial feed to both sides of tube or 6mm is applied to all of...
09 September 2016 1,366 2 View
Hi dear RG members. I plan to use Archimedean principle for the measurements of liquid steels density. I need to select a sinker body material which can resist high Manganese steels (possibly...
06 September 2016 7,882 1 View
This is a SEM image from a weld, and I see this microstructure in it. can someone explain to me what are those white veins? and why they have been formed?
13 August 2016 7,539 12 View
Dear All, Is it possible to calculate critical resolved shear stress for twinning in Ti-beta (bcc)? Would you please suggest some refs? Thanks, Ahmad
08 August 2016 3,315 3 View
Two fully martensitic microstructure were achieved in two ways:1. from unrecrystallized autenite. 2 from recrystallized asutenite. The prior asutenite grain size and also packets size of...
08 August 2016 9,316 3 View
How to define a grain in relation to metallurgy? Is it a right to say :a grain consists of crystals oriented in a particular direction ?
08 August 2016 6,166 4 View
08 August 2016 8,876 13 View
After melting the copper-aluminium in furnace, the black layer(copper oxide ) has formed on the surface. which chemicals are useful to clean the oxidized layer?
26 July 2016 9,461 7 View
Recently I have been trying to make Mn-containing alloys by using vacuum arc-melting furnace from pure metals. However, when we check the surface of the specimens cut from the as-cast button, we...
21 July 2016 2,908 4 View
Alkali chlorides can cause high temperature corrosion and it is known that alkali chlorides in gas phase is more crucial than that in solid phase (contained in fly ash) Are there any papers or...
21 July 2016 8,657 1 View
The heat treatment sequence involves quenching to a temperature between the Martensite-start (Ms) and Martensite-finish (Mf) temperatures, followed by a "partitioning" treatment either at, or...
19 July 2016 6,896 1 View
07 July 2016 8,471 4 View
CuNi2Si 80 mm thick section exhibited fully intergranular rupture at brazed joint. Hydrogen embrittlement and/or intermittent temperature embrittlement seem two possible sources. Are any others?
07 July 2016 9,056 2 View
07 July 2016 1,536 1 View
Specific Application please.
07 July 2016 3,468 2 View
I am looking for ways to produce powder from an aluminum bar. I can't find an available grinder/mill, so I am looking for an alternative. I saw a method wherein a steel plate and a steel bar were...
08 June 2016 4,066 15 View
cooling time between w2 and w3 that is usually explained by cycle time is important to martensitic formation was complated. for this reason, any conclusion by cooling rate in RSW and uses TTT and...
08 June 2016 9,686 1 View
I'm studying combustion of nickel coated aluminum particles. so one of the topic is phase diagram of nickel and aluminum. I read theory of it that at certain compostion if we are quenching then...
06 June 2016 9,814 9 View
AISI 4140 HSLA heated up to 845 degree C and then quenched in oil. What kind of micro structure should I expect? Also After quenched it is again tempered at 500, 600, 700, 800 degree C. In these...
06 June 2016 8,994 3 View
06 June 2016 7,628 1 View
06 June 2016 5,134 16 View
Structure evolution of martensite under tempering is commonly considered in terms of the dislocation density decrease and the carbon re-distribution together with related carbide reactions,...
06 June 2016 720 6 View