Aluminum base material with hard facing deposit

Details Aluminum base material with hard facing deposit Aluminum base material with hard facing deposit

1982-05-27

1984-02-21

Lewis, Michael L.

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder detail

219 7311, 219 7321, 219 761, 22826317, 277224, 420529, 420531, 420532, 420537, 420538, 428654, F02F 310

Patent

active

044323131

ABSTRACT:
An aluminum base material with a hard facing deposit which shows extremely good hot hardness properties when subjected to high operating temperatures. The invention provides a hard facing deposit which shows a hot hardness of at least 100 BHN at 600.degree. F., and has sufficient toughness to resist the formation of cracks when subjected to such operating temperatures. According to the preferred embodiment, the hard facing deposit includes, by weight, about 6% to about 12% silicon, up to about 6% copper, about 2% to about 6% manganese, up to about 3% iron, and about 16% to about 25% nickel. The invention is particularly useful in forming a heavy duty diesel engine piston with a piston ring groove formed in the hard facing deposit.

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patent: 4233490 (1980-11-01), Shalai et al.
Grant J.; Hadih's Chemical Dictionary, pp. 142,144,351,452-453, (1969).
Sims, C. T., et al.; The Superalloys, J. Wiley & Sons, New York, pp. 346-350, TN700 35 (1972).

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