Ultra-high strength steel containing CaO, MgO, BaO or SrO having

Details Ultra-high strength steel containing CaO, MgO, BaO or SrO having Ultra-high strength steel containing CaO, MgO, BaO or SrO having

1973-06-18

1976-06-29

Padgett, Benjamin R.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

75206, C22C 105

Patent

active

039664210

ABSTRACT:
An ultra-high strength steel composition of matter having a substantially martensitic matrix with a dispersion therein of a critical amount of metal oxide particles and characterized by increased resistance to environmental stress corrosion cracking. The metal oxide particles are selected from the group consisting of CaO, BaO, MgO, SrO and mixtures thereof, in the range of 0.1 to less than 3 mole percent. A powder metallurgy process to produce articles of manufacture from the composition of matter is disclosed.

REFERENCES:
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patent: 3024110 (1962-03-01), Funkhouser et al.
patent: 3026200 (1962-03-01), Gregory
patent: 3070439 (1962-12-01), Grant et al.
patent: 3087234 (1963-04-01), Alexander et al.
patent: 3150443 (1964-09-01), Alexander et al.
patent: 3152389 (1964-10-01), Alexander et al.
patent: 3158473 (1964-11-01), Gatti
patent: 3159908 (1964-12-01), Anders
patent: 3218135 (1965-11-01), Alexander et al.
patent: 3591362 (1971-07-01), Benjamin

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