Metal treatment – Process of modifying or maintaining internal physical... – With vibration
Reexamination Certificate
2003-11-17
2010-12-28
Wyszomierski, George (Department: 1793)
Metal treatment
Process of modifying or maintaining internal physical...
With vibration
C029S081140
Reexamination Certificate
active
07857918
ABSTRACT:
A method of production of a metallic product with a nanocrystallized surface layer comprising subjecting a surface layer of a metallic product to ultrasonic impact treatment by one or more ultrasonic indenters vibrating in a plurality of directions, then subjecting the surface layer subjected to the ultrasonic impact treatment to heat treatment at a low temperature to cause precipitation of nanocrystals.
REFERENCES:
patent: 6171415 (2001-01-01), Statnikov
patent: 6338765 (2002-01-01), Statnikov
patent: 58-116954 (1983-07-01), None
patent: 64-79320 (1989-03-01), None
patent: 1-110707 (1989-04-01), None
patent: 1944370 (1995-06-01), None
patent: 8-1514 (1996-01-01), None
patent: 09-234585 (1997-09-01), None
patent: 2002-220647 (2002-08-01), None
patent: 2003-113418 (2003-04-01), None
patent: 2003-201549 (2003-07-01), None
patent: WO 02/10462 (2002-02-01), None
K. Lu, Nanocrystalline metals crystallized from amorphous solids: nanocrystallization, structure, and properties, Materials Science and Engineering, R16 (1996) p. 161-221.
W Toman et al, Protective Gases, in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH Verlag GmbH & Co, online Jun. 15, 2000. p. 1-14 (15 pages including front matter).
G. Liu et al. Surface nanocrystallization of 316L stainless steel induced by ultrasonic shot peening. Materials Science and Engineering A286 (2000) p. 91-95.
X.Y. Wang and D.Y. Li, Mechanical and electrochemical behavior of nanocrystalline surface of 304 stainless steel, Electrochimica Acta, 47, (2002), p. 3939-3947.
Tao N.R. et al: “Surface Nanocrystallization of Iron Induced by Ultrasonic Shot Peening”, Jun. 4, 1999, Nanostructured Materials, vol. 11, No. 4, pp. 433-140.
International Search Report dated Feb. 24, 2004 issued in corresponding PCT Application No. PCT/JP03/14595.
Kazuya Yamada et al. “Cho Onpa Shot Peening ni yoru Zairyo Hyomenso no Nano-Kesshoka” The Japan Institute of Metals Koen Gaiyo, Nov. 2, 2002, vol. 131, p. 265 [with English Translation].
Higo Yakichi
Ishikawa Tadashi
Nakashima Kiyotaka
Nose Tetsuro
Takashima Kazuki
Kenyon & Kenyon LLP
Nippon Steel Corporation
Shevin Mark L
Wyszomierski George
LandOfFree
Method of production of steel product with nanocrystallized... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of production of steel product with nanocrystallized..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of production of steel product with nanocrystallized... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4189211