Metallurgy discussions

metal nomination

I wonder i anyone can help me, or direct me to somewhere I can find information. I recently saw the specification '7075...

2 comments posted 20yrs

posted by nospam.nanteshoward

2 comments posted 20yrs posted by nospam.nanteshoward

Separating a Canadian $2 Coin with Liquid Nitrogen?

I have heard the Urban Legend that if you chill a Canadian 2-dollar coin in Liquid Nitrogen, the central brass-coloured...

1 comments posted 20yrs

posted by nospam

1 comments posted 20yrs posted by nospam

Brass Strike Electroplate

Hello, I was wondering: 1. Can red brass (85% Cu/15% Zn) be reduced in HCl + H2O2 to produce CuCl2 and ZnCl2 simultaneo...

0 comments posted 20yrs

posted by abuse

0 comments posted 20yrs posted by abuse

Help req. re: thermal expansion, etc.

Hello, I have something I want to do but I need some tech info. Sorry if this is a dopey newbie question, but I've been...

9 comments posted 20yrs

posted by pteroDELETE_THISchromics

9 comments posted 20yrs posted by pteroDELETE_THISchromics

Gallium as a heat transfer medium.

I had the "brilliant" idea of using liquid gallium as a heat transfer medium between a molybdenum and alumina surface,...

5 comments posted 20yrs

posted by Steve

5 comments posted 20yrs posted by Steve

Metal Springs in Liquid Nitrogen?

I need to build an apparatus in which a spring is used to press two parts together, then the entire apparatus is immers...

5 comments posted 20yrs

posted by nospam

5 comments posted 20yrs posted by nospam

mar m 247 nickel based superalloy

Hi I'm looking for information on the effect of sour gas and liquid fuel on mar m 247 in a gas turbine engine. Any help...

1 comments posted 20yrs

posted by allan.thomson

1 comments posted 20yrs posted by allan.thomson

Looking for supplier of Ti sponge in Asia or Europe. Thanks

I am looking for a supplier of Ti sponge from Europe, or Asia. If there are anybody could recommend me manufacturing co...

0 comments posted 20yrs

posted by vfink

0 comments posted 20yrs posted by vfink

news site

www.castelcrescente.org ORG for stop pollution emilia romagna italy

0 comments posted 20yrs

posted by salutare

0 comments posted 20yrs posted by salutare

re-heat treating old knife blades

I've been having trouble re-heat treating used factory-made knife blades. The problem has been discussed here before bu...

3 comments posted 20yrs

posted by alvinj

3 comments posted 20yrs posted by alvinj

Flat or precision ground?

When ordering metal stock online what is the difference of flat ground stock and precision ground stock? Does precision...

2 comments posted 20yrs

posted by good2get2know

2 comments posted 20yrs posted by good2get2know

Metallurgist in NY are ($/day/hr)?

I was wondering if anyone is, or knows of a metallurgist in the NY area that would be available for a few days for hire...

3 comments posted 20yrs

posted by ratedr1

3 comments posted 20yrs posted by ratedr1

Can these metals be blended?

That is, iron, brass, gold and silver, to make a huge bell. There's a Chinese story from the 15th century in which it c...

2 comments posted 20yrs

posted by lenona321

2 comments posted 20yrs posted by lenona321

Spectroscope for material analysis.

Hello, I am intrested in buying a spectroscope for elemental analysis of various ferrous material to detemine the perce...

0 comments posted 20yrs

posted by yamactrl

0 comments posted 20yrs posted by yamactrl

pb etching brass

Hello, I have quite a problem with brass etching... Can you believe that ? I am working with Cu-Zn brass, two compositi...

2 comments posted 20yrs

posted by bletrym

2 comments posted 20yrs posted by bletrym