The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 2015
Filed:
Sep. 28, 2012
Bohuslav Ma{hacek Over (S)}ek, Kazn{hacek over (e)}jov, CZ;
Hana Jirková, Strakonice, CZ;
Andrea Rone{hacek Over (S)}ová, Plze{hacek over (n)}, CZ;
{hacek Over (S)}t{hacek Over (E)}pán Jení{hacek Over (C)}ek, Rotava, CZ;
Ctibor {hacek Over (S)}tádler, Plze{hacek over (n)}, CZ;
Bohuslav Ma{hacek over (s)}ek, Kazn{hacek over (e)}jov, CZ;
Hana Jirková, Strakonice, CZ;
Andrea Rone{hacek over (s)}ová, Plze{hacek over (n)}, CZ;
{hacek over (S)}t{hacek over (e)}pán Jení{hacek over (c)}ek, Rotava, CZ;
Ctibor {hacek over (S)}tádler, Plze{hacek over (n)}, CZ;
Abstract
In a first step of the method of achieving TRIP microstructure in steels by deformation heat, steel feedstock is heated to a temperature below the temperature at which austenite begins to form in the steel in question, i.e. below A. In a next step, the feedstock is formed into a final product, using applied severe plastic deformation whereby deformation energy causes the temperature of the material to increase to the final temperature between Aand A, and whereupon the ferrite-pearlite microstructure transforms into austenite. In a third or last process step, the final product is cooled down from the final temperature to the temperature of the bainite nose of the material (B). The cooling is then interrupted and the material is held at the temperature of the bainite nose (B). Consequently, the TRIP microstructure forms. Finally, the product is cooled down to ambient temperature.