Hey all, I was thinking today,
If you heat treated (hardened) cast pistons and rods, then annealed them, could they be used for boosted applications. Obviously they wont be as strong as forged but it was just a thought too see if it would work, or make any benifit strength wise.
Anyone have any ideas??
Thanks guys
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for the amount of work to get the pistons out its not worth it to save a couple bucks, go forged and do it right the first time
rods can be shot-peened and polished to make them stronger, no where near forged strength but it makes then ALOT stronger, pistons can be coated (ceramic) makes them more durable but again, no where near forged.
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** Flat Broke Racing Inc.**
Im not looking into doing this, it was just an Idea I had earlier just too see if it would make the pistons and rods any more durable.
Im getting forged pistons for my build, but incase it was possible and maybe worth while, maybe could be an option for some people who dont really NEED forged...
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Being cast. I would be more worried about how brittle they may become after heat treating and annealing.
Also for the love of good no quenching, imo it would be way to brittle.
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
-MD- LD9 wrote:Being cast. I would be more worried about how brittle they may become after heat treating and annealing.
Also for the love of good no quenching, imo it would be way to brittle.
lol, I agree...martensite + any detonation = itty bitty piston pieces
fortune cookie say:
better a delay than a disaster.
Depends how much you harden them too... but i do get your point... And definitely no induction hardening with a quench, that wouldn't be a good idea...
The material will become more brittle the higher the hardness, so what about softening them? im not sure how hard the steel is normally, id guess 20RC, but im not sure at all. So mabe making them a little softer will make them a bit more durable.?
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OHV notec wrote:-MD- LD9 wrote:Being cast. I would be more worried about how brittle they may become after heat treating and annealing.
Also for the love of good no quenching, imo it would be way to brittle.
lol, I agree...martensite + any detonation = itty bitty piston pieces
Whoa...martensite eh....thats a blast from the past right there..........mechanics of materials, gotta love it.
Try this one on for size:
How about some reheat above Eutectic temperature followed by a reduced oxygen atmosphere air cooling, rendering a full coarse pearlite followed by a nice carburizing to fill the grain structure gaps?
What do you think?
