Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Silicon carbide particle reinforced 316L stainless steel substrate composite material and preparation method thereof

A technology of silicon carbide particles and composite materials, applied in the field of metal matrix composite materials, can solve the problems of complex preparation process, and achieve the effects of high material density, avoidance of agglomeration and simple process

Active Publication Date: 2017-11-24
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
View PDF2 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process is complicated, and surface treatment such as electroless plating or electroless deposition must be carried out on the reinforcement; in addition, the performance of the prepared material is only improved in the direction perpendicular to the whiskers or fibers, and isotropy is required for the material. For engineering components with mechanical properties, its use has certain limitations

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Silicon carbide particle reinforced 316L stainless steel substrate composite material and preparation method thereof
  • Silicon carbide particle reinforced 316L stainless steel substrate composite material and preparation method thereof
  • Silicon carbide particle reinforced 316L stainless steel substrate composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Mix 3.27g of β-SiC powder (particle size 50μm), 396.73g of 316L stainless steel powder (about 50μm), and 8g of dispersant KD-1 to prepare a slurry with a solid content of 75wt% (the solvent is alcohol). 800g of balls were used as the ball milling medium, mixed for 10 hours, and then dried in a constant temperature oven at 60°C. Then grind and pulverize, and then sieve through a 100-mesh sieve, then grind the powder, and finally sieve through a 200-mesh sieve. Put the obtained powder into a hot-pressed sintering furnace for sintering under vacuum conditions. The sintering temperature is 1115°C, the pressure is 30Mpa, and the heat preservation and pressure are held for 1 hour. The obtained silicon carbide particle-reinforced 316L stainless steel matrix composite material. The volume fraction of silicon carbide particles in the obtained silicon carbide particle reinforced 316L stainless steel matrix composite material is 2%, and the density is 7.61gcm -3 , the density rea...

Embodiment 2

[0044] Mix 17.16g of β-SiC powder (particle size 10μm), 382.84g of 316L stainless steel powder (about 50μm), and 8g of dispersant KD-1 to make a slurry with a solid content of 80wt% (the solvent is alcohol), and use WC 800 g of balls are used as the ball milling medium, mixed for 5 hours, and then dried in a constant temperature oven at 60°C. Then grind and pulverize, and then sieve through a 100-mesh sieve, then grind the powder, and finally sieve through a 200-mesh sieve. Put the obtained powder into a hot-pressed sintering furnace for sintering under vacuum conditions. The sintering temperature is 1115°C, the pressure is 30Mpa, and the heat preservation and pressure are held for 1 hour. The obtained silicon carbide particle-reinforced 316L stainless steel matrix composite material. The volume fraction of silicon carbide particles in the resulting composite material is 10%, and the density is 7.33gcm -3 , the density reaches 97.9%, and the hardness is Hv 200g 480, the ten...

Embodiment 3

[0046] Mix 36.66g of α-SiC powder (particle size 10μm) and 363.34g of 316L stainless steel powder (about 50μm) to make a slurry with a solid content of 70wt% (the solvent is alcohol), and use 800g of WC balls as the ball milling medium. Mix for 6 hours, then dry in a constant temperature oven at 60°C. Then grind and pulverize, and then sieve through a 100-mesh sieve, then grind the powder, and finally sieve through a 200-mesh sieve. Put the obtained powder into a hot-press sintering furnace for sintering under the condition of inert gas. The sintering temperature is 1120° C., the pressure is 30 MPa, and the heat preservation and pressure are maintained for 1 hour to obtain the composite material. The volume fraction of silicon carbide particles in the resulting composite material is 20%, and the density is 6.78gcm -3 , the density reaches 96.4%, and the hardness is Hv 200g 839, the tensile strength is 625Mpa, and the volume wear is 51.47mm 3 (The load is 196N, the linear v...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
tensile strengthaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a silicon carbide particle reinforced 316L stainless steel substrate composite material and a preparation method thereof. The silicon carbide reinforced 316L stainless steel substrate composite material comprises a 316L stainless steel substrate and silicon carbide particles evenly distributed in the 316L stainless steel substrate. The volume fraction of the silicon carbide particles is 2-30%. According to the preparation method of the silicon carbide particle reinforced 316L stainless steel substrate composite material, raw material powder is prepared into slurry and ball-milling is conducted by using a KD-1 polyester polyamine compound dispersant, so that the silicon carbide particles and the metal powder are fully mixed, agglomeration is avoided, therefore the powder which is subjected to ball-milling has a larger specific surface area, and later sintering densification is facilitated; and hot-pressing sintering is conducted so that the silicon carbide particle reinforced stainless steel substrate composite material with the high density and strength can be obtained. The preparation method of the silicon carbide particle reinforced 316L stainless steel substrate composite material is simple in process and short in preparation period, the material is high in density and strength.

Description

technical field [0001] The invention relates to a silicon carbide particle-reinforced 316L stainless steel-based composite material and a preparation method thereof, belonging to the field of metal-based composite materials. Background technique [0002] Particle-reinforced composites have attracted widespread attention due to their low-cost reinforcement phase, uniform microstructure, isotropic material properties, and can be processed by traditional metal processing techniques. 316L stainless steel is widely used in machinery, chemical industry, petroleum, light industry, especially marine engineering and other fields due to its non-magnetic properties, good welding performance and corrosion resistance. However, 316L stainless steel belongs to austenitic stainless steel. Since it is a solid solution and has a low carbon content, elements such as carbon are solid-dissolved in the crystal lattice, and no phase transformation occurs during cooling. Its strength and strength c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/02
CPCC22C33/0292
Inventor 黄政仁张方圆袁明黄毅华姚秀敏
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com