combution can material??

[nic123098]

does any one know what the type of metal they use on the burnner can for general smaller jet engines... :confused: :ugh:

[hval]

If you go to Google and type in "jet engine metallurgy" you will find the answers to your questions.

[blackhand]

From the Rolls Royce instructor on my 250 C series course "Sh1t Hot Tin"

BH

[easaman]

Liner The liner contains the combustion process and introduces the various airflows (intermediate, dilution, and cooling, see Air flow paths below) into the combustion zone. The liner must be designed and built to withstand extended high temperature cycles. For that reason liners tend to be made from superalloys (http://en.wikipedia.org/wiki/Superalloy) like Hastelloy X (http://en.wikipedia.org/wiki/Hastelloy) (easaman: mostly monel, inconel & nickel alloy material).
...
Some combustors also make use of thermal barrier coatings
(http://en.wikipedia.org/wiki/Thermal_barrier_coating)
From Combustor - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Combustor)

Have fun reading it all!
easaman

[Engine Wizard]

Hi,
I'd like to help, but engine manufacturers are not going to enthusiastically share the exact composition of their specialist alloys... pretty big on Intellectual Property.
Cheerio.
Wizard

[Alber Ratman]

The same materials they use on large engines.. High temperature resistance alloys.. You must remember that the flame is burning hotter than the melting point of these materials, so the cooling air introduced into the chamber through its length is also being used as cooling as well as being the working gas being heated. Volcanic Ash turns into molten glass through the chamber burners and sticks to everything past it including the NGVs and turbine blades, blocking the cooling air holes and causing blades to melt and fail. Thats why Air regulatory authorities close down air space when ash clouds are present.. The ash also destroys compressor parts by abrasion (shot blasting at 350 mph, that is the speed that air is drawn in at the entry of the compressor stage with particles of rock).

[hval]

Nic123098,

I came across the following YouTube video providing the basics on how jet engines work. I found it rather a good introductory film. It is probably well below your knowledge levels, but may be worth a viewing.

p1TqwAKwMuM&feature=related

[jucylucy]

Still no mention of "combution can materials" Must be on the new engines!!!:E

[hval]

Still no mention of "combution can materials"

True, but we did tell nic123098 where to look for the information. Google provides the answers. Also, funnily enough, if you watched the YouTube I posted above and then looked at the associated YouTube clips you will see lots of stuff to do with Combustion chambers. Just not materials.

[jucylucy]

"combution cans" after some research I have found they are made of a mythical material from the unicorn's horn(the one on the front!)!! took a lot of searching! Combustion cans was easy to find! Aviation english.......time spent online with correct spelling is well spent.:E

[hval]

But then Combution can burnners are notoriously difficult to research.

Mind you, I shouldn't talk. Look at my spelling mistakes with practice & practise today. I have a tendency to type and send without checking.

[jucylucy]

You are so right!!! Just spent a few hours searching "combution can burnners" turns they are lined with the wings of young swallows under 2 months old!!!!! This is just so hard!!! This internit thinng is grrreat!:E

[ross_M]

engine manufacturers are not going to enthusiastically share the exact composition of their specialist alloys... pretty big on Intellectual Property.

If someone were really so inclined, can't be that hard to scrape a sample and run an analysis?

[hval]

can't be that hard to scrape a sample and run an analysis?

You might get your fingers burnt. Actually, it is quite difficult to do a materials analysis and work out how the materials detected were mixed and deposited on the combustion can sub matrix material.