METHOD FOR HEAT TREATMENT TO FORM AUSTENITE IN IRON-CHROMIUM ALLOYS Russian patent published in 2002 - IPC

Abstract RU 2184175 C2

FIELD: iron-based alloys. SUBSTANCE: invention relates to heat treatment in gaseous media and can be used in manufacture of low-carbon iron-chromium alloys with chromium level of 5-30 wt.%. Product made from this alloy is placed in closed space and nitrogenized using air as nitrogenizing gas medium. Air-to-product weight ratio and air pressure are specified for room temperature and then product is heated to 900-1300 C, aged, and cooled in salt water. EFFECT: simplified nitrogenization process. 5 cl, 2 dwg, 2 tbl

Similar patents RU2184175C2

Title	Year	Author	Number
AUSTENITE STEEL	2001	Korshunov L.G. Gojkhenberg Ju.N. Chernenko N.L.	RU2207397C2
UNIVERSAL MILL	1996	Lipanov A.M. Denisov V.A.	RU2116131C1
DEVICE DETECTING HYDROGEN IN METALS	1998	Mikheev G.M. Kaljuzhnyj D.G.	RU2148815C1
DEVICE FOR DETERMINING PRESENCE OF HYDROGEN IN METALS	1992	Mikheev G.M. Maleev D.I. Makhnev E.S. Mogileva T.N.	RU2027165C1
DEVICE FOR SAMPLING CLUSTERS FROM SUPERSONIC FLUX	1998	Besogonov A.P. Lipanov A.M.	RU2152604C1
METHOD OF PRODUCING METAL CLUSTERS AND DEVICE FOR ITS EMBODIMENT	2001	Besogonov A.P.	RU2183535C1
METHOD OF STRENGTHENING HEAT TREATMENT OF ROUND BILLETS AND PRODUCTS	1994	Sukhikh A.A. Dement'Ev V.B. Vylezhnev V.P.	RU2084547C1
METHOD OF MEASUREMENT OF TEMPERATURE DISTRIBUTION IN SHOCK WAVE AND DEVICE FOR REALIZATION OF THIS METHOD	1997	Besogonov A.P. Lipanov A.M.	RU2130592C1
METHOD OF TREATMENT OF AGEING AUSTENITIC STEELS	1994	Uvarov A.I. Zel'Dovich V.I. Rinkevich O.S. Deribas A.A.	RU2081188C1
PROCESS OF PROGRAMMED SELECTION OF CLUSTERS FROM SUPERSONIC FLOW AND DEVICE FOR ITS IMPLEMENTATION	1999	Besogonov A.P. Lipanov A.M.	RU2155950C1

RU 2 184 175 C2

Authors

Goncharova N.V.

Makhneva T.M.

Dates

2002-06-27—Published

2000-08-14—Filed