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Method for measuring sulfur content in powdered high-temperature alloy

A high-temperature alloy, sulfur content technology, applied in the direction of measuring devices, preparation of test samples, color/spectral characteristics measurement, etc., to achieve the effect of ensuring consistency, ensuring accuracy, and improving accuracy

Active Publication Date: 2012-01-25
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The properties of powder superalloys are in powder state, so how to choose the appropriate fluxing material to ensure the complete release of sulfur is particularly important; how to determine the working conditions of the high-frequency infrared carbon-sulfur analyzer is still inconclusive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Determination of sulfur content in FGH95 powder superalloy, characterized in that: high-frequency infrared carbon-sulfur analyzer is used to determine sulfur content by high-frequency induction combustion-infrared absorption method. The working conditions of the instrument are as follows: measuring flow rate 3 liters / min, measuring pressure 36psi, power gas pressure 40psi, minimum analysis time 50s;

[0061] 1. The spare parts used in the measurement process are as follows:

[0062] 1.1. Potassium sulfate, high-purity chemical reagent;

[0063] 1.2. The first steel ring standard material: American LECO501-506, sulfur content: 0.0044% ± 0.0003%;

[0064] 1.3. Standard material of the second steel ring: American LECO501-506, sulfur content: 0.0038%±0.0003%;

[0065] 1.4. Porcelain crucible: Al 2 o 3 Material, φ25mm×25mm;

[0066] 1.5, tin capsule: model AR2166;

[0067] 1.6. High-purity tungsten tin particle flux: C: ≤0.0001%, S: ≤0.0001%;

[0068] 1.7. Ultra-low s...

Embodiment 2

[0087] Determination of sulfur content in FGH96 powder superalloy, characterized in that: high-frequency infrared carbon-sulfur analyzer is used to determine sulfur content by high-frequency induction combustion-infrared absorption method. The working conditions of the instrument are as follows: measuring flow rate 3 liters / min, measuring pressure 34psi, power gas pressure 40psi, minimum analysis time 50s;

[0088] 1. The spare parts used in the measurement process are as follows:

[0089] 1.1. Potassium sulfate, high-purity chemical reagent;

[0090] 1.2. The first steel ring standard material: American LECO501-506, sulfur content: 0.0044% ± 0.0003%;

[0091] 1.3, the second steel ring standard material; American LECO501-506, sulfur content: 0.0038% ± 0.0003%;

[0092] 1.4. Porcelain crucible: Al 2 o 3 Material, φ25mm×25mm;

[0093] 1.5, tin capsule: model AR2166;

[0094] 1.6. High-purity tungsten tin particle flux: C: ≤0.0001%, S: ≤0.0001%;

[0095] 1.7. Ultra-low su...

Embodiment 3

[0114] Determination of sulfur content in FGH97 powder superalloy, characterized in that: high-frequency infrared carbon-sulfur analyzer is used to determine sulfur content by high-frequency induction combustion-infrared absorption method. The working conditions of the instrument are as follows: measuring flow rate 3 liters / min, measuring pressure 35psi, power gas pressure 40psi, minimum analysis time 50s;

[0115] 1. The spare parts used in the measurement process are as follows:

[0116] 1.1. Potassium sulfate, high-purity chemical reagent;

[0117] 1.2. The first steel ring standard material: American LECO501-506, sulfur content: 0.0044% ± 0.0003%;

[0118] 1.3. Standard material of the second steel ring: American LECO501-506, sulfur content: 0.0038%±0.0003%;

[0119] 1.4. Porcelain crucible: Al 2 o 3 Material, φ25mm×25mm;

[0120] 1.5, tin capsule: model AR2166;

[0121] 1.6. High-purity tungsten tin particle flux: C: ≤0.0001%, S: ≤0.0001%;

[0122] 1.7. Ultra-low s...

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Abstract

The invention belongs to an alloy trace element analysis technology and relates to a method for measuring the sulfur content in a powdered high-temperature alloy. In the method, the sulfur content is measured by adopting a high-frequency infrared carbon and sulfur analyzer and a high-frequency induction combustion-infrared ray absorption method. The measurement method comprises the following steps of: measuring a sulfur content blank value; preparing a sulfur correction sample; correcting by adopting the high-frequency infrared carbon and sulfur analyzer; sampling and preparing a sample; preparing a specimen; and measuring the sulfur content in the high-temperature alloy powder sample to be measured. The invention improves the accuracy of a measuring result, solves the measuring problem of the sulfur content in the powdered high-temperature alloy and provides a reliable technical guarantee for the development, the smelting, the application and the quality control of the powdered high-temperature alloy.

Description

technical field [0001] The invention belongs to alloy trace element analysis technology, and relates to a method for measuring sulfur content in powder superalloy. Background technique [0002] Due to its good tensile strength and fatigue strength, powder superalloy plays an important role in the components of the engine. With the development of the national defense industry, the performance requirements of materials are becoming more and more stringent, and some inclusions are the key factors affecting the performance. Therefore, accurate determination of the content of impurity element sulfur in the alloy is very important for the evaluation of material performance. The analysis of sulfur content in materials generally adopts high-frequency induction combustion-infrared absorption method, which is accurate and fast. However, there is no standard for detecting sulfur content in powdered nickel-based superalloys by this method. The properties of powdered superalloys are in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/35G01N1/28G01N21/3563
Inventor 曹维杨春晟宋晓辉耿小颖
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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