CN109022730A - Austenite stainless steel surface S phase and anti-corrosion layer acquisition methods - Google Patents

Austenite stainless steel surface S phase and anti-corrosion layer acquisition methods Download PDF

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Publication number
CN109022730A
CN109022730A CN201811255187.4A CN201811255187A CN109022730A CN 109022730 A CN109022730 A CN 109022730A CN 201811255187 A CN201811255187 A CN 201811255187A CN 109022730 A CN109022730 A CN 109022730A
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Prior art keywords
stainless steel
piece
acquisition methods
corrosion layer
layer acquisition
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CN201811255187.4A
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Chinese (zh)
Inventor
王国明
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Chongqing Industry Polytechnic College
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Chongqing Industry Polytechnic College
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Priority to CN201811255187.4A priority Critical patent/CN109022730A/en
Publication of CN109022730A publication Critical patent/CN109022730A/en
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    • 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
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
    • 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
    • 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
    • C23C8/36—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 using ionised gases, e.g. ionitriding
    • C23C8/38—Treatment 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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F17/00—Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

The present invention relates to surface of stainless steel process field, a kind of austenite stainless steel surface S phase and anti-corrosion layer acquisition methods are disclosed, comprising the following steps: cold-rolling treatment a) is carried out to stainless steel work-piece；B) cold-rolled stainless steel work-piece is made annealing treatment；C) carbo-nitriding processing is carried out to the stainless steel work-piece after annealing；D) oxidation processes are carried out to stainless steel work-piece surface；E) cleaning, drying stainless steel work-piece.Stainless crystalline grain of steel can be refined by making annealing treatment later to stainless-steel cold-rolling, forms tiny tissue defects between stainless steel interior tissue；The speed of carbo-nitriding and depth of penetration have obtained thicker surface S phase after crystal grain and defect after refinement can be improved；Surface oxidation is carried out to stainless steel again later and has formed Cr2O3Oxidation film, fine and close sull can effectively improve stainless steel surface corrosion resistance.

Description

Austenite stainless steel surface S phase and anti-corrosion layer acquisition methods
Technical field
The present invention relates to surface of stainless steel process field, more particularly to a kind of austenite stainless steel surface S phase and Anti-corrosion layer acquisition methods.
Background technique
The modification of austenite stainless steel surface is one of the research hotspot in Surface Engineering field.Austenitic stainless steel low temperature It learns to be heat-treated and can get the single-phase modified layer that Chrome-free compound is precipitated, material surface is made to have both excellent wearability and corrosion resistance.It mentions High disposal temperature or when extending the processing time, the compound of Cr can be precipitated in modified layer, result in material surface it is corrosion proof under Drop.The phase structure of single-phase layer is the expanded austenite of gap over-saturation, also referred to as S phase.One layer of cause is formed in metal surface simultaneously Close sull can effectively improve the corrosion resistance of metal.Current dialysis technology is difficult quickly to prepare thicker Single-phase modified layer, while can not also obtain corrosion-resistant oxidation film.
Summary of the invention
The present invention provides a kind of austenite stainless steel surface S phase and anti-corrosion layer acquisition methods, to solve austenite stainless The problem of steel surface S phase obtains difficulty while can not further increase metal corrosion-resisting.
To achieve the goals above, one aspect of the present invention provides a kind of austenite stainless steel surface S phase and anti-corrosion layer obtains Take method, comprising the following steps:
A) cold-rolling treatment is carried out to stainless steel work-piece；
B) cold-rolled stainless steel work-piece is made annealing treatment；
C) carbo-nitriding processing is carried out to the stainless steel work-piece after annealing；
D) oxidation processes are carried out to stainless steel work-piece surface；
E) cleaning, drying stainless steel work-piece.
Preferably, the deformation quantity of the cold-rolling treatment is 50%-80%.
Preferably, described 680 DEG C -750 DEG C of annealing temperature, soaking time 1min-3min, the type of cooling is that furnace is cold.
Preferably, the carbo-nitriding is ion infiltration.
Preferably, the atmosphere that the ion seeps is NH3With rare earth alcohol gas.
Preferably, the rare earth ethanol solution is La and/or Ce dissolved with rare earth element, and the alcohol gas passes through heating It obtains.
Preferably, the oxidation processes are plasma oxidation processing.
Preferably, in plasma oxidation processing, the stainless steel work-piece is arranged in the mixing of oxygen and nitrogen In gas, the stainless steel work-piece is anode, and silver or platinum are cathode, is passed through cathode 0.1KV-0.12KV anode 1.5KV-1.8KV Frequency 0.6KHz-0.75KHz sawtooth wave or triangular wave electric pulse, by stainless steel work-piece surface described in glow discharge oxidation with shape At Cr2O3Oxidation film.
Preferably, further include after the step b stainless steel work-piece after annealing is machined out formed it is desired The moulding of acquisition.
Preferably, after the step c further include cleaning polishing process to the stainless steel work-piece after carbo-nitriding.
It is using the advantages of a kind of austenite stainless steel surface S phase of above-mentioned technical proposal of the present invention and anti-corrosion layer: passes through Stainless crystalline grain of steel can be refined to making annealing treatment after stainless-steel cold-rolling, is formed between stainless steel interior tissue tiny Tissue defects；The speed of carbo-nitriding and depth of penetration have obtained thicker table after crystal grain and defect after refinement can be improved Face S phase；Surface oxidation is carried out to stainless steel again later and has formed Cr2O3Oxidation film, fine and close sull can effectively improve Stainless steel surface corrosion resistance.
Detailed description of the invention
Fig. 1 is the stream of the most preferred embodiment of a kind of austenite stainless steel surface S phase of the present invention and anti-corrosion layer acquisition methods Cheng Tu.
Specific embodiment
In order to better illustrate the present invention, attached embodiment is as follows.It is emphasized that embodiment is not meant to the present invention Scope limitation in the condition that embodiment describes, the purpose of embodiment is the content that the present invention is further explained and its feasible
Embodiment 1:
A kind of austenite stainless steel surface S phase and anti-corrosion layer acquisition methods, the technical scheme comprises the following steps:
A) cold-rolling treatment that deformation quantity is 50% is carried out to workpiece；
B) the cold annealing of furnace that workpiece carries out 680 DEG C, soaking time 1min, 20 DEG C/s of cooling velocity are carried out after；
C) workpiece is placed in NH3In the mixed gas of alcohol gas (volume ratio 1:1), carry out at the permeation of carbon Nitrogen ion Reason, time 1h, alcohol gas are taken by the rare earth ethanol solution evaporation of the La element dissolved with 5vol.% or other gasification modes ?；
D) workpiece is placed in the mixed gas that oxygen and nitrogen are set, the stainless steel work-piece is anode, and silver is yin Pole, be passed through cathode 0.1KV, anode 1.5KV, frequency 0.6KHz, in sawtooth wave electric pulse, time 3min passes through glow discharge oxygen Change the stainless steel work-piece surface to form Cr2O3 oxidation film.
E) ethyl acetate solvent and industrial cleaners cleaning workpiece 10min are used, is dried after washing, later packaging envelope Case.
Embodiment 2:
A kind of austenite stainless steel surface S phase and anti-corrosion layer acquisition methods, the technical scheme comprises the following steps:
A) cold-rolling treatment that deformation quantity is 80% is carried out to workpiece；
B) the cold annealing of furnace that workpiece carries out 750 DEG C, soaking time 3min, 50 DEG C/s of cooling velocity are carried out after；
C) workpiece is placed in NH3In the mixed gas of alcohol gas (volume ratio 1:20), carry out at the permeation of carbon Nitrogen ion Reason, time 3h, alcohol gas are taken by the rare earth ethanol solution evaporation of the Ce element dissolved with 50vol.% or other gasification modes ?；
D) workpiece is placed in the mixed gas that oxygen and nitrogen are set, the stainless steel work-piece is anode, and silver is yin Pole is passed through cathode 0.12KV, cathode 1.8KV, frequency 0.75KHz, is in triangular wave electric pulse, and time 20min is put by aura Stainless steel work-piece surface is described in electroxidation to form Cr2O3Oxidation film.
E) ethyl acetate solvent and industrial cleaners cleaning workpiece 3min are used, is dried after washing, later packaging envelope Case.
Embodiment 3:
A kind of austenite stainless steel surface S phase and anti-corrosion layer acquisition methods, the technical scheme comprises the following steps:
A) cold-rolling treatment that deformation quantity is 65% is carried out to workpiece；
B) the cold annealing of furnace that workpiece carries out 710 DEG C, soaking time 2min, 35 DEG C/s of cooling velocity are carried out after；
C) workpiece is placed in NH3In the mixed gas of alcohol gas (volume ratio 1:10), carry out at the permeation of carbon Nitrogen ion Reason, time 2h, alcohol gas is by the rare earth ethanol solution evaporation of the Ce and La element dissolved with 25vol.% or other gasification sides Formula obtains；
D) workpiece is placed in the mixed gas that oxygen and nitrogen are set, the stainless steel work-piece is anode, and platinum is yin Pole, be passed through cathode 0.11KV, cathode 1.65KV, frequency 0.7KHz, in triangular wave electric pulse, time 10min passes through glow discharge The stainless steel work-piece surface is aoxidized to form Cr2O3Oxidation film.
E) industrial cleaners cleaning workpiece 5min is used, is dried after washing.
Embodiment 4:
A kind of austenite stainless steel surface S phase and anti-corrosion layer acquisition methods, the technical scheme comprises the following steps:
A) cold-rolling treatment that deformation quantity is 65% is carried out to metal embryo material；
B) embryo material after rolling carries out the cold annealing of furnace of 710 DEG C, soaking time 2min, 35 DEG C/s of cooling velocity；
C) embryo material is machined out the moulding for obtaining design requirement；
D) workpiece is placed in NH3In the mixed gas of alcohol gas (volume ratio 1:10), carry out at the permeation of carbon Nitrogen ion Reason, time 2h, alcohol gas is by the rare earth ethanol solution evaporation of the Ce and La element dissolved with 25vol.% or other gasification sides Formula obtains；
E) workpiece is placed in the mixed gas that oxygen and nitrogen are set, the stainless steel work-piece is anode, and platinum is yin Pole, be passed through cathode 0.11KV, cathode 1.65KV, frequency 0.7KHz, in triangular wave electric pulse, time 10min passes through glow discharge The stainless steel work-piece surface is aoxidized to form Cr2O3Oxidation film.
F) industrial cleaners cleaning workpiece 5min is used, is dried after washing.
Embodiment 5:
A kind of austenite stainless steel surface S phase and anti-corrosion layer acquisition methods, the technical scheme comprises the following steps:
A) cold-rolling treatment that deformation quantity is 65% is carried out to metal embryo material；
B) embryo material after rolling carries out the cold annealing of furnace of 710 DEG C, soaking time 2min, 35 DEG C/s of cooling velocity；
C) embryo material is machined out the moulding for obtaining design requirement；
D) workpiece is placed in NH3In the mixed gas of alcohol gas (volume ratio 1:10), carry out at the permeation of carbon Nitrogen ion Reason, time 2h, alcohol gas is by the rare earth ethanol solution evaporation of the Ce and La element dissolved with 25vol.% or other gasification sides Formula obtains；
E) it to workpiece grinding and polishing, then with industrial cleaners cleaning workpiece 10min, washes, dry later；
F) workpiece is placed in the mixed gas that oxygen and nitrogen are set, the stainless steel work-piece is anode, and platinum is yin Pole, be passed through cathode 0.11KV, cathode 1.65KV, frequency 0.7KHz, in triangular wave electric pulse, time 10min passes through glow discharge The stainless steel work-piece surface is aoxidized to form Cr2O3Oxidation film.
G) industrial cleaners cleaning workpiece 5min is used, is dried after washing.

Claims (10)

1. a kind of austenite stainless steel surface S phase and anti-corrosion layer acquisition methods, which comprises the following steps:
A) cold-rolling treatment is carried out to stainless steel work-piece；
B) cold-rolled stainless steel work-piece is made annealing treatment；
C) carbo-nitriding processing is carried out to the stainless steel work-piece after annealing；
D) oxidation processes are carried out to stainless steel work-piece surface；
E) cleaning, drying stainless steel work-piece.
2. austenite stainless steel surface S phase according to claim 1 and anti-corrosion layer acquisition methods, which is characterized in that institute The deformation quantity for stating cold-rolling treatment is 50%-80%.
3. austenite stainless steel surface S phase according to claim 1 and anti-corrosion layer acquisition methods, which is characterized in that institute 680 DEG C -750 DEG C of temperature, soaking time 1min-3min of annealing is stated, the type of cooling is that furnace is cold.
4. austenite stainless steel surface S phase according to claim 1 and anti-corrosion layer acquisition methods, which is characterized in that institute Carbo-nitriding is stated as ion infiltration.
5. austenite stainless steel surface S phase according to claim 4 and anti-corrosion layer acquisition methods, which is characterized in that institute The atmosphere for stating ion infiltration is NH3With rare earth alcohol gas.
6. austenite stainless steel surface S phase according to claim 5 and anti-corrosion layer acquisition methods, which is characterized in that institute It is La and/or Ce that rare earth ethanol solution, which is stated, dissolved with rare earth element, and the alcohol gas is obtained by heating.
7. austenite stainless steel surface S phase according to claim 1 and anti-corrosion layer acquisition methods, which is characterized in that institute Oxidation processes are stated as plasma oxidation processing.
8. austenite stainless steel surface S phase according to claim 7 and anti-corrosion layer acquisition methods, which is characterized in that In the plasma oxidation processing, the stainless steel work-piece is arranged in the mixed gas of oxygen and nitrogen, the stainless steel Workpiece is anode, and silver or platinum are cathode, is passed through cathode 0.1KV-0.12KV, anode 1.5KV-1.8KV, frequency 0.6KHz- 0.75KHz, sawtooth wave or triangular wave electric pulse, by stainless steel work-piece surface described in glow discharge oxidation to form Cr2O3Oxidation Film.
9. austenite stainless steel surface S phase according to claim 1 and anti-corrosion layer acquisition methods, which is characterized in that institute Stating after step b further includes being machined out the moulding for having been formed and having been gone for the stainless steel work-piece after annealing.
10. austenite stainless steel surface S phase according to claim 1 and anti-corrosion layer acquisition methods, which is characterized in that institute Stating further includes cleaning polishing process to the stainless steel work-piece after carbo-nitriding after step c.
CN201811255187.4A 2018-10-26 2018-10-26 Austenite stainless steel surface S phase and anti-corrosion layer acquisition methods Pending CN109022730A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101376948A (en) * 2007-08-27 2009-03-04 宝山钢铁股份有限公司 Low-cost high-purity medium carbon bearing steel for automobile hub and manufacturing method thereof
CN101648334A (en) * 2008-08-15 2010-02-17 宝山钢铁股份有限公司 Manufacturing technique of austenitic stainless steel cold-rolled plate with good surface performance
CN105839165A (en) * 2016-04-20 2016-08-10 深圳八六三计划材料表面技术研发中心 Austenitic stainless steel and treatment method for improving hardness and corrosion resistance
CN105950834A (en) * 2016-06-13 2016-09-21 张家港阿斯恩表面工程科技有限公司 Surface treatment process of stainless steel machined product
CN106222570A (en) * 2016-08-16 2016-12-14 武汉钢铁股份有限公司 Nitrided steel substrate that a kind of corrosion-resistant property is excellent and production method
EP3299487A1 (en) * 2016-09-27 2018-03-28 Bodycote plc Method for surface hardening a cold deformed article comprising low temperature annealing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101376948A (en) * 2007-08-27 2009-03-04 宝山钢铁股份有限公司 Low-cost high-purity medium carbon bearing steel for automobile hub and manufacturing method thereof
CN101648334A (en) * 2008-08-15 2010-02-17 宝山钢铁股份有限公司 Manufacturing technique of austenitic stainless steel cold-rolled plate with good surface performance
CN105839165A (en) * 2016-04-20 2016-08-10 深圳八六三计划材料表面技术研发中心 Austenitic stainless steel and treatment method for improving hardness and corrosion resistance
CN105950834A (en) * 2016-06-13 2016-09-21 张家港阿斯恩表面工程科技有限公司 Surface treatment process of stainless steel machined product
CN106222570A (en) * 2016-08-16 2016-12-14 武汉钢铁股份有限公司 Nitrided steel substrate that a kind of corrosion-resistant property is excellent and production method
EP3299487A1 (en) * 2016-09-27 2018-03-28 Bodycote plc Method for surface hardening a cold deformed article comprising low temperature annealing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
陈宏涛: ""奥氏体不锈钢低温稀土氮碳共渗层相结构及其性质研究"", 《中国博士学位论文全文数据库》 *

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Application publication date: 20181218