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An amorphous iron-phosphorus alloy/v8c7 composite coating and its electroplating process

A V8C7, iron-phosphorus alloy technology, applied in coatings, electrolytic coatings, etc., can solve the problems of local adiabatic shear zone fracture failure, limit the application of amorphous materials, limit the use of amorphous materials, etc., and achieve high utilization of raw materials. , The effect of effectively suppressing grain growth and improving stability

Inactive Publication Date: 2015-09-30
UNIV OF SCI & TECH BEIJING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under the action of stress, amorphous materials are easy to induce local adiabatic shear bands to form single shear cracks and fail suddenly, and they hardly show plastic deformation characteristics before fracture failure, which greatly limits the use of amorphous materials as structural materials. Applications
On the other hand, the structural characteristics of amorphous determine that it is in a thermodynamic metastable state, which also limits the use of amorphous materials at higher temperatures.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The amorphous iron-phosphorus alloy / V of the present embodiment 8 C 7 Composite coating, the substrate material of the composite coating is an amorphous Fe-P alloy, the Fe content is 84.4wt% of the composite coating, the P content is 12.4wt% of the composite coating, and the composite coating contains solid particles V 8 C 7 , the content is 3.2wt% of the composite coating.

[0024] Its electroplating process includes the following steps:

[0025] (1) Pretreatment of the electroplated surface: the plated material is made of No. 25 steel plate. After milling, grinding and grinding the plated surface, it is cleaned with 3wt% sodium hydroxide solution for 20 minutes to remove grease, and then soaked in 5wt% hydrochloric acid solution for 2 minutes to activate the plated surface. plated surface;

[0026] (2)V 8 C 7 Activation treatment of microparticles: the V 8 C 7 The particles were added to 20wt% hydrochloric acid solution, heated to 70°C for 30 minutes, washed w...

Embodiment 2

[0033] The amorphous iron-phosphorus alloy / V of the present embodiment 8 C 7 Composite coating, the substrate material of the composite coating is an amorphous Fe-P alloy, the Fe content is 76.6wt% of the composite coating, the P content is 18.1wt% of the composite coating, and the composite coating contains solid particles V 8 C 7 , the content is 5.3wt% of the composite coating.

[0034] Its electroplating process includes the following steps:

[0035] (1) Pretreatment of the electroplating surface: Q235 steel plate is selected as the plating material. After milling, grinding and grinding, the surface to be plated is cleaned with 5wt% sodium hydroxide solution for 15 minutes to remove grease, and then cleaned with 5% sulfuric acid solution for 5 minutes to activate the plated surface. plated surface;

[0036] (2)V 8 C 7 Activation treatment of microparticles: the V 8 C 7 The particles were added to 15wt% hydrochloric acid solution, heated to 75°C for 40 minutes, wash...

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Abstract

An amorphous iron-phosphorus alloy / V8C7 composite coating and its electroplating process, the matrix material of the composite coating is an amorphous Fe-P alloy, the Fe content is 60-89wt% of the composite coating, and the P content is 10% of the composite coating -30wt%, the composite coating contains solid particle V8C7, the content is 1-10wt% of the composite coating. The invention also includes the electroplating process of the amorphous iron-phosphorus alloy / V8C7 composite coating. The amorphous iron-phosphorus alloy / V8C7 composite coating of the invention has the properties of V8C7 and amorphous alloy, and has the advantages of high strength, high plasticity, high wear resistance, high transition temperature and the like.

Description

technical field [0001] The invention relates to a composite coating and an electroplating process thereof, in particular to an amorphous iron-phosphorus alloy / V 8 C 7 Composite coating and its electroplating process. Background technique [0002] Composite electroplating is the use of electrochemical methods to co-deposit metals (or alloys) and solid particles (or fibers) to obtain composite coatings. There is almost no diffusion between the matrix metal and solid particles in the composite coating, so it has the comprehensive properties of matrix metal and solid particles. Composite coating can contain various metals or alloys and various types of particles. Its technical applicability and practicability are broad, and it has strong variability and operability, and its application will become more and more extensive. [0003] The particularity of the amorphous structure (short-range order) makes amorphous materials have excellent mechanical properties, corrosion resistan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D15/00C25D3/56
Inventor 罗奕兵刘新华戴晓元张健
Owner UNIV OF SCI & TECH BEIJING
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