Dual-phase steel color metallographic coloring agent and color display method thereof
A color metallography and dye technology, applied in metal material coating process, preparation of test samples, instruments, etc., can solve the problems of indistinguishability, affect product organization judgment, affect scientific research and product development, etc., and achieve stable performance. , Significant economic and social benefits, and novel effects
Active Publication Date: 2011-04-13
MAANSHAN IRON & STEEL CO LTD
View PDF5 Cites 22 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The defect is that in the black and white metallographic structure, the ferrite is white, and it is easier to identify the ferrite, while the island martensite and bainite are both gray and black, so it is difficult to distinguish, which becomes the bottleneck in the quantitative analysis of the structure , affect the judgment of product organization, affect scientific research and product development
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0033] At a constant temperature of 30°C, first dissolve sodium metabisulfite in water to make a 0.8% sodium metabisulfite solution, then add 2% picric acid alcohol according to the specified volume ratio, and mix it into a dye solution. The specimen is then immersed in the stain solution. Its content of sodium metabisulfite solution, picric acid alcohol concentration, film-forming time are listed in Table 1.
Embodiment 2
[0035] With embodiment 1 method. Its sodium metabisulfite and picric acid alcohol solution volume, film-forming time are listed in Table 1.
Embodiment 3
[0037] With embodiment 1 method. Its sodium metabisulfite and picric acid alcohol solution volume, film-forming time are listed in Table 1.
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
Login to View More Abstract
The invention discloses a dual-phase steel color metallographic coloring agent and a color display method thereof, belongs to a decoration agent for steel material metallographic display, and in particular relates to a decoration agent for steel color metallography and a color metallographic display method. The color metallographic coloring agent is prepared by mixing 40 to 60 volume percent of 0.8 to 3.0 percent sodium pyrosulfite solution and 40 to 60 volume percent of 2.0 to 6.0 percent picral and adding 0 to 0.02g of low-carbon steel scrap sample at the constant temperature of between 30 and 40 DEG C, and is prepared by the steps of sampling, coarse grinding, fine grinding, coarse polishing, fine polishing, coloring agent solution preparation, coloring, microstructure observation, color image acquisition and black-and-white image acquisition. The invention has the advantages that: the concept is novel, the coloring agent solution has stable performance, and the coloring process issimple and reliable; and the coloring agent solution can clearly distinguish bainite or island martensite and a polygonal ferritic structure in dual-phase steel, provides guarantee for the identification and quantitative detection of a microstructure in the steel, facilitates the research and development of products and achieves obvious economic benefit and social benefit.
Description
technical field [0001] The invention belongs to a decoration agent for metallographic display of steel material microstructure, in particular to a decoration agent for steel color metallographic display and a method for color metallographic display. Background technique [0002] Dual-phase steel is a high-strength steel mainly used in automobile wheels or structural parts. The microstructure of this steel is mainly ferrite + martensite or ferrite + bainite. The content of martensite or bainite in steel has an important influence on the properties of steel, so quantitative analysis of martensite or bainite is required. Black and white metallography is now used. The defect is that in the black and white metallographic structure, the ferrite is white, and it is easier to identify the ferrite, while the island martensite and bainite are both gray and black, so it is difficult to distinguish, which becomes the bottleneck in the quantitative analysis of the structure , affecting...
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
Login to View More IPC IPC(8): C23C22/50G01N21/84G01N1/30G01N1/32
Inventor 杨丽珠王越陈联满王媛婷李奕
Owner MAANSHAN IRON & STEEL CO LTD
PatSnap Eureka turns technology decisions into work you can execute. Powered by our Innovation Knowledge Graph, it runs expert workflows across engineering, life sciences, materials and intellectual property. Get your review-ready output in minutes.
