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1. WO2022030818 - STEEL MATERIAL HAVING EXCELLENT HYDROGEN EMBRITTLEMENT RESISTANCE AND IMPACT TOUGHNESS AND METHOD FOR MANUFACTURING SAME

Publication Number WO/2022/030818
Publication Date 10.02.2022
International Application No. PCT/KR2021/009333
International Filing Date 20.07.2021
IPC
C22C 38/44 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
18containing chromium
40with nickel
44with molybdenum or tungsten
C22C 38/42 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
18containing chromium
40with nickel
42with copper
C22C 38/48 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
18containing chromium
40with nickel
48with niobium or tantalum
C22C 38/54 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
18containing chromium
40with nickel
54with boron
CPC
C21D 2211/008
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
2211Microstructure comprising significant phases
008Martensite
C22C 38/42
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
18containing chromium
40with nickel
42with copper
C22C 38/44
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
18containing chromium
40with nickel
44with molybdenum or tungsten
C22C 38/48
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
18containing chromium
40with nickel
48with niobium or tantalum
C22C 38/54
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
18containing chromium
40with nickel
54with boron
Applicants
  • 주식회사 포스코 POSCO [KR]/[KR]
Inventors
  • 성현제 SUNG, Hyun-Je
Agents
  • 특허법인 씨엔에스 C&S PATENT AND LAW OFFICE
Priority Data
10-2020-009930507.08.2020KR
Publication Language Korean (ko)
Filing Language Korean (KO)
Designated States
Title
(EN) STEEL MATERIAL HAVING EXCELLENT HYDROGEN EMBRITTLEMENT RESISTANCE AND IMPACT TOUGHNESS AND METHOD FOR MANUFACTURING SAME
(FR) PLAQUE D'ACIER PRÉSENTANT UNE EXCELLENTE RÉSISTANCE À LA FRAGILISATION PAR L'HYDROGÈNE ET UNE EXCELLENTE TÉNACITÉ ET SON PROCÉDÉ DE FABRICATION
(KO) 수소 취화 저항성 및 충격 인성이 우수한 강재 및 이의 제조방법
Abstract
(EN) The objective of the present invention is to provide: a steel material having improved hydrogen embrittlement resistance and impact properties despite a low-cost alloy system compared to conventional steel; and a method for manufacturing same.
(FR) L'objectif de la présente invention est de fournir : un matériau d'acier ayant des propriétés améliorées de résistance à la fragilisation par l'hydrogène et de ténacité en dépit d'un système d'alliage à faible coût par rapport à un acier classique ; et son procédé de fabrication.
(KO) 본 발명은 종래 강 대비 저비용 합금계임에도 수소 취화 저항성 및 충격 특성을 향상시킨 강재 및 이의 제조방법을 제공하고자 하는 것이다.
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