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

Method for measuring content of boron in cobalt-base alloy

A cobalt-based alloy, boron content technology, used in the preparation of test samples, color/spectral properties measurement, etc.

Active Publication Date: 2011-07-06
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regarding the analysis of boron in the alloy, there is currently no method for accurately analyzing the alloy at home and abroad. The nickel-based superalloy method is basically used mechanically. The method has a long time for sample dissolution, uncertain selection of the analysis line, etc., resulting in a relatively short analysis period. Long and so on

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
  • Method for measuring content of boron in cobalt-base alloy
  • Method for measuring content of boron in cobalt-base alloy
  • Method for measuring content of boron in cobalt-base alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1.2), nitric acid, ρ1.42g / mL; superior grade;

[0042] (1.3), hydrofluoric acid, ρ1.15g / mL; superior grade;

[0043] (1.4), cobalt standard solution: 10.0mg / mL; weigh 5.000g; >99.98% metal cobalt is placed in a 250mL beaker, heated and dissolved with 15mL hydrochloric acid (1.1) at low temperature, cooled, transferred to a 500mL volumetric flask, and diluted with water to the mark, shake well;

[0044] (1.5), boron standard solution A: 1.00mg / mL; weigh 5.7192g of boric acid and dissolve it in 20mL of water, heat slightly to dissolve, transfer to a 500mL volumetric flask, dilute with water to the mark, and shake well;

[0045] (1.6), boron standard solution B: 0.10 mg / mL; pipette 25.00 mL of boron standard solution A (1.5) into a 250 mL volumetric flask, add 10 mL of nitric acid (1.2), dilute to the mark with water, and shake well;

[0046] (1.7), boron standard solution C: 0.01mg / mL; pipette 25.00mL boron standard solution B (1.6) into a 250mL volumetric flask, add 1...

Embodiment 2

[0065] (1.2), nitric acid, ρ1.42g / mL; superior grade;

[0066] (1.3), hydrofluoric acid, ρ1.15g / mL; superior grade;

[0067] (1.4), cobalt standard solution: 10.0mg / mL; weigh 5.000g; >99.98% metal cobalt is placed in a 250mL beaker, heat and dissolve with 5-15mL hydrochloric acid (1.1) at low temperature, cool, transfer to a 500mL volumetric flask, Dilute to the mark with water and shake well;

[0068] (1.5), boron standard solution A: 1.00mg / mL; weigh 5.7192g of boric acid and dissolve it in 20mL of water, heat slightly to dissolve, transfer to a 500mL volumetric flask, dilute with water to the mark, and shake well;

[0069] (1.6), boron standard solution B: 0.10 mg / mL; pipette 25.00 mL of boron standard solution A (1.5) into a 250 mL volumetric flask, add 10 mL of nitric acid (1.2), dilute to the mark with water, and shake well;

[0070] (1.7), boron standard solution C: 0.01mg / mL; pipette 25.00mL boron standard solution B (1.6) into a 250mL volumetric flask, add 10mL nitr...

Embodiment 3

[0088] (1.2), nitric acid, ρ1.42g / mL; superior grade;

[0089] (1.3), hydrofluoric acid, ρ1.15g / mL; superior grade;

[0090] (1.4), cobalt standard solution: 10.0mg / mL; weigh 5.000g; >99.98% metal cobalt is placed in a 250mL beaker, heated and dissolved with 15mL hydrochloric acid (1.1) at low temperature, cooled, transferred to a 500mL volumetric flask, and diluted with water to the mark, shake well;

[0091] (1.5), boron standard solution A: 1.00mg / mL; weigh 5.7192g of boric acid and dissolve it in 20mL of water, heat slightly to dissolve, transfer to a 500mL volumetric flask, dilute with water to the mark, and shake well;

[0092] (1.6), boron standard solution B: 0.10 mg / mL; pipette 25.00 mL of boron standard solution A (1.5) into a 250 mL volumetric flask, add 10 mL of nitric acid (1.2), dilute to the mark with water, and shake well;

[0093] (1.7), boron standard solution C: 0.01mg / mL; pipette 25.00mL boron standard solution B (1.6) into a 250mL volumetric flask, add 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

No PUM Login to View More

Abstract

The present invention belongs to a technique for analyzing trace elements of an alloy, and relates to a method for measuring the content of boron in a cobalt-base alloy. By adopting an inductively coupled plasma emission spectrometer and treating a sample of the cobalt-base alloy in particular a high-tungsten sample by using 20mL of hydrochloric acid, nitric acid and hydrofluoric acid, the method solves the puzzling problems that the past dissolved sample has large reagent dosage and high reagent blank and cannot be measured normally by an instrument; by performing interference experiments and spectrogram analyses, the method finds the optimal analytical line, overcomes the interferences caused by a plurality of elements such as major elements of cobalt, chromium, tungsten and the like in the cobalt-base alloy, and improves the measuring accuracy; the method has wide measuring ranges, the measuring lower limit is 0.002 percent, and the measuring upper limit is 0.20 percent and is 101 times of the measuring lower limit; and the method provided by the present invention can perform measurement quickly, is simple and convenient to operate, and saves a large quantity of manpower and material resources.

Description

technical field [0001] The invention belongs to alloy trace element analysis technology, and relates to a method for measuring boron content in cobalt-based alloys. Background technique [0002] At present, there is no detection method standard for the analysis of the composition of cobalt-based superalloys at home and abroad. The methods used in the current work of many testing centers are based on the method standards of nickel-based superalloys. Due to the special structure of cobalt-based superalloys, its The sample dissolution time is much longer than that of other common superalloys, and if the sample dissolution method of nickel-based and iron-based superalloys is simply applied, there will often be incomplete dissolution of cobalt-based superalloy samples. [0003] The control of boron in cobalt-based superalloys is very strict. The measurement limit of B element is 0.005%, and the measurement limit is 0.20%. Therefore, accurate analysis of boron content in the allo...

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 Patents(China)
IPC IPC(8): G01N21/31G01N1/38
Inventor 叶晓英高颂杨春晟
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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