Treated austenitic steel for vehicles

Details Treated austenitic steel for vehicles Treated austenitic steel for vehicles

2007-04-27

2010-12-07

Hendrickson, Stuart (Department: 1793)

Metal treatment

Process of modifying or maintaining internal physical...

Carburizing or nitriding using externally supplied carbon or...

C148S210000, C148S212000, C148S225000, C148S230000, C148S238000

Reexamination Certificate

active

07846272

ABSTRACT:
A treated austenitic steel and method for treating same includes an austenitic steel and a non-metal chemical element incorporated into a surface of the steel. The surface has a bi-layered structure of a compound layer at a top and an underlying diffusion layer, which protects said surface against hydrogen embrittlement.

REFERENCES:
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patent: 2006/0034724 (2006-02-01), Hamano et al.
patent: 2006/0061043 (2006-03-01), Takahashi et al.
patent: 2006/0090817 (2006-05-01), Somers et al.
patent: 698 03 389 (2002-08-01), None
patent: 04-263071 (1992-09-01), None
patent: WO 2005/124910 (2005-12-01), None
patent: WO 2006/036241 (2006-04-01), None
“Effect of N2 to C2H2 ratio on r.f. plasma surface treatment of austenitic stainless steel”, Surface and Coatings Technology 183 (2004) 268-274.

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