Engine header glows purple. WTF?

[Ns1]

How does this happen? Super hot + some type of metal in the header?

https://www.youtube.com/watch?v=YPtD_oiFqPg#t=35

 

[Mark R]

Deficient infra-red filter in the camera.

 

[MixMasterTang]

Youtube comments say that titanium turns purple when it gets hot. Other websites describe the same thing with hot titanium: http://ganoksin.com/blog/noel/magic-color-on-metal-titanium/

 

[Ns1]

Youtube comments say that titanium turns purple when it gets hot. Other websites describe the same thing with hot titanium: http://ganoksin.com/blog/noel/magic-color-on-metal-titanium/

ty

 

[Mark R]

Titanium will develop a colored coating if heated. It doesn't change the color of the glow while it is hot.

Garbage grade cameras see red-hot or almost-red-hot objects as glowing purple. It's quite freaky, because just before something starts glowing IRL, a cheap camera will often see it glowing purple.

 

[Fenixgoon]

aside from any filtering, the emitted color is related to the temperature of the metal and the oxide film that is formed.

it's called heat tinting.

 

[LTC8K6]

That's a camera problem.

 

[Howard]

It doesn't look like heat tint to me. Even if it was, it would mean that that was the first time the engine was put under load. Moreover, heat tint shows a gradient of colours, going from yellow, to brown, to greenish, to purple. The metal went to purple right away.

It could possibly be a camera issue.

 

[Kaido]

Youtube comments say that titanium turns purple when it gets hot. Other websites describe the same thing with hot titanium: http://ganoksin.com/blog/noel/magic-color-on-metal-titanium/

Are you sure it isn't hot kool-aid?

 

[JCH13]

Youtube comments say that titanium turns purple when it gets hot. Other websites describe the same thing with hot titanium: http://ganoksin.com/blog/noel/magic-color-on-metal-titanium/

YouTube comments are wrong (shocking I know). You are grossly misinterpreting that website's content as well.

Titanium will develop a colored coating if heated. It doesn't change the color of the glow while it is hot.

Garbage grade cameras see red-hot or almost-red-hot objects as glowing purple. It's quite freaky, because just before something starts glowing IRL, a cheap camera will often see it glowing purple.

^ Bang on.

Since 2008 I have been working with titanium application engineering and titanium welding research/development.

Edit: furthermore, those headers/exhaust look like SS to me, they are not dark enough when cool to be titanium IMO.

 

[manimal]

YouTube comments are wrong (shocking I know). You are grossly misinterpreting that website's content as well.



^ Bang on.

Since 2008 I have been working with titanium application engineering and titanium welding research/development.

/thread



and love that engine

 

[Fritzo]

Titanium will develop a colored coating if heated. It doesn't change the color of the glow while it is hot.

Garbage grade cameras see red-hot or almost-red-hot objects as glowing purple. It's quite freaky, because just before something starts glowing IRL, a cheap camera will often see it glowing purple.

I was going to say inaccurate camera translation, but you beat me to it