I know conventional steel has no molecules, as the type of bond the atoms have is crystalline.
However, since my recent melt result, I have been trying to understand exactly what type of structure/bond intermetallics have.
As I read it, 2 metals form a covalent bond, i.e. molecular. Is that an...
I made an alloy that possibly formed Iron-niobium intermetallic filiments.
I'm having trouble finding a micrographs of such a structure. Any hep? Google-fu is weak. Thanks.
Would you benefit from the addition of rhenium in medium carbon steel, other than the obvious high heat environs?
Rhenium is a very interesting transition metal, with some very good qualities. Thanks.
Would the addition of tungsten, .55%, to 4340 mod, (300m),contribute a few points of hardness after tempering to spec?
I would like to add a little hardness without sacrificing strength or toughness or reducing the draw temp.
Hello.
I am looking for a refractory that can withstand up to 6000 F, to hold large,(12 pound charge), thermit reactions.
I prefer something I can shape myself.
Thanks.
Hello.
I am looking for a supplier of magnesium oxide, aka, magnesia tar.
There are a couple of forms it comes in, but it is basically the same chemical, and about the only thing available, outside black projects, that will routinely take 5 to 6000 degrees F.
Thanks.
Greetings.
I am looking for a portable light source to use for inspecting fuel tanks, empty fuel drums, solvent containers, etc.
The requirements are;
It cannot be electrical, even though they make electric lights for this purpose.
Of course no flame, or heat.
Must be portable, and be able...
Hello. Could you steel minded folks kindly take a look at my thread concerning crystal manipulation in steel using vibration. Thanks http://www.eng-tips.com/viewthread.cfm?qid=126500&page=1
We know you can use sub to low sonic waves to relive stresses in carbon, alloy steel cased by machining, welding etc.
When martempering, (marquenching), carbon alloy steels, is it possible to use the same vibrational frequencies that reduce stress, to reduce the built in stresses caused by the...
Simple question; I am wondering in which atmosphere steel, at critical temperature more easily absorbs carbon. Carbon monoxide, or carbon dioxide? Thanks.
I'm looking for a reasonable strength magnetic field for manipulating grain structures in Si steels.
This paper claims significant results with a 30 Tesla field. I'm looking at similar results with 1.5T. Any thoughts or suggestions? http://www.msm.cam.ac.uk/phase-trans/2004/magnet.pdf
I'm looking for some easy reading on the
subject of manipulating crystal structures
in steel alloys, via magnetic fields.
I'm having a difficult time sorting out
the good from the not so good.
Any suggestions? Thanks, Jerry
Here is a paper that claims the formation of lath martensite in high carbon, (1.4%)steel. http://www.paper.edu.cn/scholar/download.jsp?file=liuyongning-8 With the help of some metallurgist friends, (I am not), I gathered that the reason lath martensite was formed, is that much of the carbon did...
How does steel absorb silicon for alloying during a melt? What form of silicon is added, and under what conditions?
I hope this is an appropriate question for this forum. Thanks, Jerry
I am aware of a few different types of martensite, but I have run across some lately, that I am not familiar with.
Could someone please direct me to a single source, with a list and description of all types of martensitic structures?
Thank you in advance, Gerald
