CN102337494B - Method for processing wear-resisting corrosion-resisting nitriding layer on surface of Fe-Mn series stainless steel - Google Patents
Method for processing wear-resisting corrosion-resisting nitriding layer on surface of Fe-Mn series stainless steel Download PDFInfo
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- CN102337494B CN102337494B CN 201110287179 CN201110287179A CN102337494B CN 102337494 B CN102337494 B CN 102337494B CN 201110287179 CN201110287179 CN 201110287179 CN 201110287179 A CN201110287179 A CN 201110287179A CN 102337494 B CN102337494 B CN 102337494B
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- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 27
- 239000010935 stainless steel Substances 0.000 title claims abstract description 26
- 229910002551 Fe-Mn Inorganic materials 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005121 nitriding Methods 0.000 title abstract description 6
- 238000005260 corrosion Methods 0.000 claims abstract description 18
- 230000007797 corrosion Effects 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 13
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims abstract description 6
- 239000011159 matrix material Substances 0.000 claims abstract description 5
- 239000004519 grease Substances 0.000 claims abstract description 4
- 238000010894 electron beam technology Methods 0.000 claims description 9
- 230000008595 infiltration Effects 0.000 claims description 7
- 238000001764 infiltration Methods 0.000 claims description 7
- 229910021529 ammonia Inorganic materials 0.000 claims description 5
- 239000003209 petroleum derivative Substances 0.000 claims description 5
- 238000002441 X-ray diffraction Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 239000002932 luster Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 238000010849 ion bombardment Methods 0.000 abstract description 3
- 238000011109 contamination Methods 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 238000003672 processing method Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 150000002500 ions Chemical class 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 229910018487 Ni—Cr Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910018648 Mn—N Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- RBVYPNHAAJQXIW-UHFFFAOYSA-N azanylidynemanganese Chemical compound [N].[Mn] RBVYPNHAAJQXIW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
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- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
Fe-Mn系不锈钢表面耐磨耐腐蚀渗氮层的加工方法：a.Fe-Mn系不锈钢工件进行表面清洗，去除基材表面的氧化层和油脂污秽；b.把清洗好的工件放入料筐；c.连同料筐一起将工件送进程控电脉冲型多功能离子轰击炉；d.轰击炉内所用气源材料为工业液氨和石油烃，轰击炉压保持在20～200Pa，处理温度范围为400～500℃，保温时间为6～8小时；e.取出轰击炉内的高温工件与料筐，空冷或油冷后在工件表面获得渗氮层。渗层含有FeNiN化合物，渗层和基体结合良好，无空隙、疏松、析出相发现；渗层硬度为HV0.11150～1250，脆性等级为一级，具有良好的耐磨性和耐大气腐蚀性能，渗氮层质量稳定。The processing method of the wear-resistant and corrosion-resistant nitriding layer on the surface of Fe-Mn series stainless steel: a. Clean the surface of the Fe-Mn series stainless steel workpiece to remove the oxide layer and grease contamination on the surface of the substrate; b. Put the cleaned workpiece into the material c. Send the workpiece together with the material basket to the process-controlled electric pulse type multifunctional ion bombardment furnace; d. The gas source materials used in the bombardment furnace are industrial liquid ammonia and petroleum hydrocarbons. The pressure of the bombardment furnace is kept at 20-200Pa. The range is 400-500°C, and the holding time is 6-8 hours; e. Take out the high-temperature workpiece and material basket in the bombardment furnace, and obtain a nitriding layer on the surface of the workpiece after air cooling or oil cooling. The infiltrated layer contains FeNiN compound, the infiltrated layer and the matrix are well combined, no voids, loose, and precipitated phases are found; the infiltrated layer has a hardness of HV 0.1 1150-1250, and a brittleness level of one, with good wear resistance and atmospheric corrosion resistance. The quality of the nitrided layer is stable.
Description
Technical field
The invention belongs to metallic surface nitriding processing technology field, specifically relate to the working method that a kind of Fe-Mn is stainless steel surface wear resistant corrosion resistant nitrided case.
Background technology
Since 2002, China becomes global maximum stainless steel country of consumption continuously, and wherein Fe-Mn is that the stainless steel share rises year by year.Domestic production Fe-Mn in 2006 is that stainless steel accounts for stainless steel ultimate production 28.6%; 2008, the private Fe-Mn of steel mill of China be stainless steel account for stainless steel output 90%, its demand and output speedup have surpassed the average speedup of other series stainless steels.In the general corrosion medium, Fe-Mn is that to be lower than Ni-Cr be stainless steel to the stainless steel solidity to corrosion.But meaningfully, at some special harsh medium such as chloride ion-containing environment, Fe-Mn be the stainless steel solidity to corrosion to be better than Ni-Cr be stainless steel, now be applied in industries such as naval vessel, ocean, marine oil.
Be the expansion of stainless steel Application Areas along with Fe-Mn, its R﹠D work of carrying out is deeply carried out, be an importance with the nitrogen element to its alloying research, the nitrogen element can improve the corrosion resistance nature of austenitic stainless steel, local corrosion resistance nature particularly is as intergranular corrosion, spot corrosion and crevice corrosion.But the melting of Fe-Mn-N austenitic steel has special technical requirement, and the research work of China's high-nitrogen austenitic steel is in the starting stage, produces high nitrogen manganese austenitic steel and exists equipment and a technology difficult problem to remain further to be studied.
Summary of the invention
The present invention solves the existing in prior technology technical problem, it is the working method of stainless steel surface wear resistant corrosion resistant nitrided case that a kind of Fe-Mn is provided, working method is: a.Fe-Mn is that stainless steel work-piece carries out surface cleaning, removes zone of oxidation and the grease filth of substrate surface; B. cleaned workpiece is put into charging basket; C. send workpiece to program control electricimpulse type multifunction ion bombarding furnace together with charging basket; D. used source of the gas material is industrial liquefied ammonia and petroleum hydrocarbon in the electron-beam furnace, and the bombardment furnace pressure remains on 20～200 Pa, and temperature ranges is 400～500 ℃, and soaking time is 6～8 hours; E. take out high temperature workpiece and charging basket in the electron-beam furnace, obtain nitrided case at workpiece surface behind air cooling or the oil cooling.The used program control electricimpulse type multifunction ion bombarding furnace of the present invention was applied for patent by Hangzhou Plasma Equipment Engineering Co., Ltd. on December 13rd, 2002, and the patent No. is ZL 022 51500.3.
It is an element alloyed effective way of ferrimanganic austenitic steel surface nitrogen that the present invention utilizes plasma bombardment surface carburization modified technique, the beneficial effect that brings is: be that stainless steel surface obtains a kind of nitrided case at Fe-Mn, the appearance luster grey, about 25～35 μ m of infiltration layer outermost bed thickness, about 10～20 μ m of middle bed thickness, about 25～30 μ m of transition bed thickness; X-ray diffraction is the result show, infiltration layer contains the FeNiN compound, and infiltration layer and matrix bond are good, tight, loose, precipitated phase discovery; Nitrided layer hardness is HV
0.11150～1250, the fragility grade is one-level, has good wear resistance and atmospheric corrosion resistance, the nitrided case steady quality, and tooling cost is low, non-exhaust emission, the clean and tidy health of environment in the course of processing of the present invention.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment: a kind of Fe-Mn is the working method of stainless steel surface wear resistant corrosion resistant nitrided case, and working method is: a.Fe-Mn is that stainless steel work-piece carries out surface cleaning, removes zone of oxidation and the grease filth of substrate surface; B. cleaned workpiece is put into charging basket; C. send workpiece to program control electricimpulse type multifunction ion bombarding furnace together with charging basket; D. used source of the gas material is industrial liquefied ammonia and petroleum hydrocarbon in the electron-beam furnace, and the bombardment furnace pressure remains on 20～200 Pa, and temperature ranges is 400～500 ℃, and soaking time is 6～8 hours; E. take out high temperature workpiece and charging basket in the electron-beam furnace, obtain nitrided case at workpiece surface behind air cooling or the oil cooling.Test of many times proves, the depth of penetration that above-mentioned treatment process obtains, hardness value the best, and the nitrogen layer quality is the most stable.
The present invention is when using program control electricimpulse type multifunction ion bombarding furnace, before this with the electronic liter keying lid arrangement breakdown load headkerchief that revolves, with arm-and-hand system workpiece and charging basket are transported in the stove then, then close lid with electronic keying lid arrangement, then electron-beam furnace work bombardment workpiece.
Experimental example 1: adopt program control electricimpulse type multifunction ion bombarding furnace, body material is 12Cr17MnNi6N (201) stainless steel, the electron-beam furnace temperature range is 400～450 ℃, furnace pressure remains on 20～150 Pa, bombardment time is 4～5 hours, it is industrial liquefied ammonia and petroleum hydrocarbon that used source of the gas material is handled in ion bombardment, and obtaining the ion-nitriding layer outward appearance at substrate material surface is grey.The about 25 μ m of the nitrided case outermost bed thickness that this experimental example obtains, the about 10 μ m of middle bed thickness, the about 25 μ m of transition layer; Microhardness value is HV
0.11150～1200; X-ray diffraction is the result show, nitrided case contains the FeNiN compound, and infiltration layer and matrix bond are good, and tight, loose, precipitated phase discovery have good wear resistance and atmospheric corrosion resistance.
Experimental example 2: adopt program control electricimpulse type multifunction ion bombarding furnace, body material is 12Cr18Mn8Ni5N (202) stainless steel, the electron-beam furnace temperature range is 450～500 ℃, the bombardment furnace pressure remains on 50～200Pa, bombardment time is 5～6 hours, it is industrial liquefied ammonia and petroleum hydrocarbon that used source of the gas material is handled in ion bombardment, and obtaining the ion-nitriding layer outward appearance at substrate material surface is grey.The about 35 μ m of the nitrided case outermost bed thickness that this experimental example obtains, the about 20 μ m of middle bed thickness, the about 30 μ m of transition layer; Microhardness value is HV
0.11200～1250; X-ray diffraction is the result show, nitrided case contains the FeNiN compound, and infiltration layer and matrix bond are good, and tight, loose, precipitated phase discovery have good wear resistance and atmospheric corrosion resistance.
At last, should be pointed out that above embodiment only is the more representational example of the present invention.Obviously, technical scheme of the present invention is not limited to above-described embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (1)
1. working method that Fe-Mn is stainless steel surface wear resistant corrosion resistant nitrided case, it is characterized in that described working method is: a.Fe-Mn is that stainless steel work-piece carries out surface cleaning, removes zone of oxidation and the grease filth of substrate surface; B. cleaned workpiece is put into charging basket; C. send workpiece to program control electricimpulse type multifunction ion bombarding furnace together with charging basket; D. used source of the gas material is industrial liquefied ammonia and petroleum hydrocarbon in the electron-beam furnace, and the bombardment furnace pressure remains on 20～200 Pa, and temperature ranges is 400～500 ℃, and soaking time is 6～8 hours; E. take out high temperature workpiece and charging basket in the electron-beam furnace, obtain nitrided case at workpiece surface behind air cooling or the oil cooling; Using aforesaid method is the nitrided case that stainless steel surface obtains at Fe-Mn, the appearance luster grey, infiltration layer outermost bed thickness 25～35 μ m, middle bed thickness 10～20 μ m, transition bed thickness 25～30 μ m, X-ray diffraction is the result show, infiltration layer and matrix bond are good, tight, loose, precipitated phase discovery, nitrided layer hardness is HV0.11150～1250.
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| CN 201110287179 CN102337494B (en) | 2011-09-26 | 2011-09-26 | Method for processing wear-resisting corrosion-resisting nitriding layer on surface of Fe-Mn series stainless steel |
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| CN 201110287179 CN102337494B (en) | 2011-09-26 | 2011-09-26 | Method for processing wear-resisting corrosion-resisting nitriding layer on surface of Fe-Mn series stainless steel |
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| CN1204697A (en) * | 1997-04-29 | 1999-01-13 | 奥瓦科钢铁股份公司 | Nitriding steel |
| CN100381598C (en) * | 2004-12-27 | 2008-04-16 | 宝山钢铁股份有限公司 | A kind of grain-oriented silicon steel and its production method and device |
| FR2933990B1 (en) * | 2008-07-15 | 2010-08-13 | Aubert & Duval Sa | LOW-COBALT HARDENED CURED MARTENSITIC STEEL, METHOD FOR MANUFACTURING A WORKPIECE THEREFROM, AND PIECE THUS OBTAINED |
| CN101358273B (en) * | 2008-09-05 | 2010-12-01 | 首钢总公司 | A kind of production method of low temperature oriented electrical steel |
| JP5241455B2 (en) * | 2008-12-02 | 2013-07-17 | 新日鐵住金株式会社 | Carbonitriding member and method for producing carbonitriding member |
| JP5625288B2 (en) * | 2009-08-24 | 2014-11-19 | 株式会社豊田中央研究所 | Corrosion-resistant wear-resistant member and manufacturing method thereof |
| CN102154652B (en) * | 2011-03-11 | 2012-11-28 | 江苏南方轴承股份有限公司 | Medium-deep-layer carburization or carbonitriding thermal processing technology for bearings or clutch parts |
| CN102168269A (en) * | 2011-03-16 | 2011-08-31 | 广州有色金属研究院 | Method for preparing accelerated carburizing plasma nitrocarburizing and titanium carbonitride composite membrane layer |
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