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Linear ion implantation surface modification method of M50NiL material

A technology of surface modification and ion implantation, which is applied in the direction of ion implantation plating, metal material coating process, coating, etc., can solve the problems of material mechanical properties, bombardment damage, etc., to meet performance requirements, improve surface state, Effect of Excellent Contact Fatigue Resistance

Active Publication Date: 2014-04-30
BEIJING RES INST OF AUTOMATION FOR MACHINERY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Third, the existing single element overdose implantation, the radiation damage of ion implanted elements is far greater than the radiation damage of different elements after cross-implantation
And excessive bombardment damage also has a great influence on the mechanical properties of materials.

Method used

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  • Linear ion implantation surface modification method of M50NiL material
  • Linear ion implantation surface modification method of M50NiL material
  • Linear ion implantation surface modification method of M50NiL material

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0042] Step 1) Prepare a M50NiL material to be processed,

[0043] Remove the grease on its surface: first remove the grease on the surface of the M50NiL material to be treated with a metal degreasing solvent, then soak it in non-polluting tetrachlorethylene for 20 to 30 minutes, take it out, and use rice paper to absorb the residual solvent. Then wipe the surface of the material with absorbent cotton, and finally wipe it with a clean silk cloth; the metal degreasing solvent is a commercially available common metal degreasing solvent, and its ingredients include sodium hydroxide, sodium carbonate, sodium phosphate decahydrate, sodium silicate, washing Agents, corrosion inhibitors, solvent water, etc.; tetrachlorethylene for cleaning can also be replaced by other organic solvents.

[0044] Remove the rust spots on the surface of the M50NiL material: soak and clean the M50NiL material with a metal cleaning agent (metal rust remover) with rust removal function for 10-20 minutes, ...

Embodiment 1

[0052] In this embodiment, nitrogen ions and zirconium ions are used to modify the surface of the M50NiL material, and three implants are performed. The zirconium ions can be equally replaced by titanium ions, molybdenum ions, and chromium ions, and various parameters (such as implantation energy, implantation dose, etc.) remain unchanged.

[0053] Step 1) Prepare a M50NiL material to be treated, first remove the grease on the surface of the M50NiL material to be treated with a metal degreasing solvent, then put it in non-polluting tetrachlorethylene for 20 minutes, take it out, and absorb it with rice paper If the solvent remains, wipe the surface of the material with absorbent cotton, and finally wipe it with a clean silk cloth; soak and clean the M50NiL material with a metal cleaner with rust removal function for 10 minutes, so that there are no micro rust spots on the surface; put the M50NiL material in acetone , take it out after ultrasonic cleaning for 20 minutes, and dr...

Embodiment 2

[0058] In this embodiment, nitrogen ions and zirconium ions were used to modify the surface of the M50NiL material, and four implants were performed. The zirconium ions can be equally replaced by titanium ions, molybdenum ions, and chromium ions, and various parameters (such as implantation energy, implantation dose, etc.) remain unchanged.

[0059] Step 1) Prepare a M50NiL material to be treated, first remove the grease on the surface of the M50NiL material to be treated with a metal degreasing solvent, then put it in non-polluting tetrachlorethylene for 30 minutes, take it out, and absorb it with rice paper If the solvent remains, wipe the surface of the material with absorbent cotton, and finally wipe it with a clean silk cloth; soak and clean the M50NiL material with a metal cleaner with rust removal function for 20 minutes to make the surface free of micro rust spots; put the M50NiL material in acetone , take it out after ultrasonic cleaning for 40 minutes, and dry it wit...

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Abstract

The invention discloses a linear ion implantation surface modification method of an M50NiL material. The method comprises the following steps: carrying out surface modification on M50NiL material by adopting a linear ion implantation mode, carrying out continuous overlapping injection by adopting nitrogen ions and metal ions for surface modification; firstly, injecting the nitrogen ions, then injecting the metal ions, and orderly circulating at least twice, so that the nitrogen ions and the metal ions are injected at least twice. By adopting the linear ion implantation surface modification method of the M50NiL material and the surface-modified M50NiL material disclosed by the invention, the surface of the modified M50NiL material has good contact fatigue resistance.

Description

technical field [0001] The invention relates to the field of surface modification treatment of metal materials, in particular to a method for performing ion beam surface modification on M50NiL steel materials. Background technique [0002] M50NiL and M50 bearing steel materials (M50NiL and M50 are bearing steel grades expressed according to the national standard "Steel Product Grade Representation Method" (GB221-79)) are high-temperature resistant bearing materials widely used on aero-engine bearings at this stage Among them, the M50NiL material has low carbon content in the core and a more dispersed carbide distribution, which has good fracture toughness. At the same time, since the surface layer of M50NiL material has a high hardness not lower than M50 after carburizing, it is more widely used in bearings with high DN value (inner diameter size X speed) than M50. M50NiL material bearings usually work under the conditions of high temperature, heavy load and high speed, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/48
Inventor 金杰朱政黄晓林王月
Owner BEIJING RES INST OF AUTOMATION FOR MACHINERY IND
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