US20230110864A1 - Steel and method for manufacturing steel - Google Patents
Steel and method for manufacturing steel Download PDFInfo
- Publication number
- US20230110864A1 US20230110864A1 US17/957,830 US202217957830A US2023110864A1 US 20230110864 A1 US20230110864 A1 US 20230110864A1 US 202217957830 A US202217957830 A US 202217957830A US 2023110864 A1 US2023110864 A1 US 2023110864A1
- Authority
- US
- United States
- Prior art keywords
- steel
- comparative
- carburizing
- present disclosure
- thermal treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 58
- 239000010959 steel Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000005255 carburizing Methods 0.000 claims abstract description 40
- 239000002244 precipitate Substances 0.000 claims abstract description 23
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 21
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 21
- 238000005096 rolling process Methods 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 229910052748 manganese Inorganic materials 0.000 claims description 17
- 229910052759 nickel Inorganic materials 0.000 claims description 17
- 229910052710 silicon Inorganic materials 0.000 claims description 16
- 229910052758 niobium Inorganic materials 0.000 claims description 15
- 229910052720 vanadium Inorganic materials 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 4
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 238000007669 thermal treatment Methods 0.000 abstract description 28
- 230000000704 physical effect Effects 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 11
- 238000005728 strengthening Methods 0.000 abstract description 11
- 238000001556 precipitation Methods 0.000 abstract description 6
- 239000000956 alloy Substances 0.000 abstract description 4
- 229910045601 alloy Inorganic materials 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 46
- 239000011651 chromium Substances 0.000 description 31
- 239000011572 manganese Substances 0.000 description 27
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 25
- 239000010955 niobium Substances 0.000 description 17
- 239000000203 mixture Substances 0.000 description 10
- 239000006104 solid solution Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/76—Adjusting the composition of the atmosphere
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/28—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/20—Carburising
- C23C8/22—Carburising of ferrous surfaces
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/28—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases more than one element being applied in one step
- C23C8/30—Carbo-nitriding
- C23C8/32—Carbo-nitriding of ferrous surfaces
Definitions
- a method for manufacturing a steel according to an embodiment of the present disclosure can include preparing a carburized steel including C, Si, Mn, Cr, Ni, Mo, Nb, and V; rolling the carburized steel at a temperature of 1180 to 1460° C.; carburizing and hardening the rolled carburized steel at a temperature of 850 to 920° C. for 150 to 300 minutes; and precipitating an MX precipitate including V and Nb at a fraction of 0.025 to 0.045%.
- Chromium (Cr) is an element for strengthening the base tissue according to the increase in hardenability upon quenching after the carburizing thermal treatment.
- the content of Cr is added in an amount of 1.35 wt % or more to improve the physical property with the fatigue resistance.
- the content of Cr is limited to a range of 1.35 to 1.65 wt % to secure vehicle quietness and assembly stability.
- the present disclosure is characterized by providing the steel including the optimal alloy components capable of reducing the carburizing thermal deformation by reducing the contents of the Cr and Mo elements compared to the existing ones.
- the steel manufactured by the method for manufacturing the steel according to the present disclosure is, in one example, characterized by including C: 0.17 to 0.23 wt %, Si: 0.6 to 0.8 wt %, Mn: 0.35 to 0.65 wt %, Cr: 1.35 to 1.65 wt %, Ni: 0.25 to 0.45 wt %, Mo: 0.15 to 0.25 wt %, Nb: 0.015 to 0.035 wt %, and V: 0.02 to 0.04 wt % based on the entire composition of 100 wt %.
- the steel is also characterized in that the residues include iron and other inevitably mixed impurities.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020210133564A KR20230050561A (ko) | 2021-10-08 | 2021-10-08 | 강재 및 강재를 제조하는 방법 |
KR10-2021-0133564 | 2021-10-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20230110864A1 true US20230110864A1 (en) | 2023-04-13 |
Family
ID=85797474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/957,830 Abandoned US20230110864A1 (en) | 2021-10-08 | 2022-09-30 | Steel and method for manufacturing steel |
Country Status (2)
Country | Link |
---|---|
US (1) | US20230110864A1 (ko) |
KR (1) | KR20230050561A (ko) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160305006A1 (en) * | 2015-04-20 | 2016-10-20 | Hyundai Motor Company | Carburizing alloy steel having improved durability and method of manufacturing the same |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000027040A (ko) | 1998-10-26 | 2000-05-15 | 정몽규 | 열변형 저감을 위한 강의 표면 열처리 방법 |
KR101795401B1 (ko) | 2016-05-26 | 2017-11-08 | 현대자동차 주식회사 | 침탄강 및 침탄강의 제조방법 |
-
2021
- 2021-10-08 KR KR1020210133564A patent/KR20230050561A/ko unknown
-
2022
- 2022-09-30 US US17/957,830 patent/US20230110864A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160305006A1 (en) * | 2015-04-20 | 2016-10-20 | Hyundai Motor Company | Carburizing alloy steel having improved durability and method of manufacturing the same |
Also Published As
Publication number | Publication date |
---|---|
KR20230050561A (ko) | 2023-04-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100336339B1 (ko) | 고강도 스프링용 강선 및 그 제조 방법 | |
KR101830017B1 (ko) | 침탄 강 부품의 제조 방법 및 침탄 강 부품 | |
EP1746176B1 (en) | Shaped steel article with excellent delayed fracture resistance and tensile strength of 1600 MPa class or more and methods of production of the same | |
KR100961584B1 (ko) | 침탄 고주파 담금질 부품 | |
KR101141764B1 (ko) | 피로 특성이 우수한 자동차 차대 부품용 열간 압연 강재의 제조 방법 | |
KR100848784B1 (ko) | 자동차 변속기 기어용 고강도 합금강의 열처리 방법 | |
KR20120099519A (ko) | 표면 경화강 및 침탄재 | |
CN113684418A (zh) | 一种高淬透性的翻斗车车厢用热轧热成形高强钢 | |
KR101701652B1 (ko) | 연질화 처리용 강판 및 그 제조 방법 | |
US20230110864A1 (en) | Steel and method for manufacturing steel | |
JP2009155730A (ja) | 疲労特性に優れた異形断面形状の自動車足回り部品 | |
JP6301694B2 (ja) | 真空浸炭用鋼材及びその製造方法 | |
KR100716344B1 (ko) | 변속기 기어 및 샤프트용 초고강도 크롬-몰리브덴 합금강의 열처리 방법 | |
EP1876255B1 (en) | Carbonitriding or cementation steel and method of producing parts with said steel | |
JP3927420B2 (ja) | 焼戻し軟化抵抗性に優れた肌焼鋼 | |
US20050186105A1 (en) | Cr-Mo alloy steel for transmission gear | |
JPH0565592A (ja) | 高疲労強度構造用鋼およびその鋼部材 | |
KR101449040B1 (ko) | 자동차용 변속 기어 제조방법 | |
KR20100079000A (ko) | 내구성이 우수한 액슬 샤프트용 보론강 및 이를 이용한 차량용 액슬 샤프트의 제조방법 | |
KR101655181B1 (ko) | 고강도 강 및 기어 제조 방법 | |
KR101481168B1 (ko) | 자동차용 샤프트 제조방법 | |
US20170044636A1 (en) | Carburized steel and method of manufacturing the same | |
KR100811912B1 (ko) | 고온 진공침탄용 고강도 크롬-몰리브덴 합금강 | |
KR101062080B1 (ko) | 로워 컨트롤 아암의 제조방법 | |
JP2002194492A (ja) | 高硬度部品 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HYUNDAI STEEL COMPANY, KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LEE, IN BEOM;KANG, MIN WOO;KANG, CHANG WON;AND OTHERS;REEL/FRAME:061277/0041 Effective date: 20220822 Owner name: KIA CORPORATION, KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LEE, IN BEOM;KANG, MIN WOO;KANG, CHANG WON;AND OTHERS;REEL/FRAME:061277/0041 Effective date: 20220822 Owner name: HYUNDAI MOTOR COMPANY, KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LEE, IN BEOM;KANG, MIN WOO;KANG, CHANG WON;AND OTHERS;REEL/FRAME:061277/0041 Effective date: 20220822 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: FINAL REJECTION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |