Process for ion nitriding aluminum or aluminum alloys

Details Process for ion nitriding aluminum or aluminum alloys Process for ion nitriding aluminum or aluminum alloys

1985-03-29

1986-07-01

Brody, Christopher W.

Metal treatment

Compositions

Heat treating

204177, C21D 148

Patent

active

045978085

ABSTRACT:
A process for ion nitriding aluminum or an aluminum alloy as an article to be treated, in which: the article is disposed in a sealed vessel; the oxygen gas in the vessel is removed; the surface of the article is heated to a prescribed nitriding temperature; the surface of the article is activated to facilitate the formation of an aluminum nitride layer by the subsequent nitriding treatment; and thereafter the article is subjected to ion nitriding, thereby forming an aluminum nitride layer having excellent wear resistance and high hardness. This ion nitriding treatment for aluminum material can be carried out even at temperatures lower than a solution treatment temperature of aluminum material.

REFERENCES:
patent: 3140205 (1964-07-01), Malcolm
patent: 4522660 (1985-06-01), Suzuki et al.

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