Method for measuring sulfur content in powdered high-temperature alloy

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...