MATERIAU METALLIQUE CARBURE ET SON PROCEDE DE PRODUCTION- Brevets EP1892312 (A1)

MATERIAU METALLIQUE CARBURE ET SON PROCEDE DE PRODUCTION

N° de brevet:	EP1892312 (A1)
Date de publication:	2008-02-27
Inventeur(s):	YOSHIMI KYOSUKE [JP];MATSUO TAKESHI [JP];SUZUKI MITSUO [JP];NIINOMI TAKAAKI [JP];
Demandeur(s):	MITSUBISHI CHEM CORP [JP];FRONTIER CARBON CORP [JP];
Classification:	C23C8/66;C01B31/02;C21D1/06;C23C4/04;
N° de demande:	EP20060756355 20060518
Numéro(s) de priorité:	WO2006JP309958 20060518;JP20050145796 20050518;JP20050257537 20050906;JP20050314057 20051028

A metal material that is, without using expensive apparatus, carburized in a low temperature region where crystal grains do not grow so much, and a producing method of the metal material are provided. A metal material mainly containing iron, wherein a surface of the metal material is subjected to a carburization treatment by a treatment using fullerenes as a carbon source.