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Method for testing oxide and slag inclusion in magnesium alloy

A detection method, magnesium alloy technology, applied in the preparation of test samples, material analysis using radiation, etc., can solve the problems of high professional level requirements for operators, high maintenance and detection costs, complex and long detection process, etc. , to achieve the effect of low cost

Active Publication Date: 2010-12-29
KUANGYUE TECH (LINYI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the industry detects these slag inclusions of impurities such as oxide films by observing the crystal phase of oxide films in magnesium alloys with an electron microscope, and these slag inclusions can be clearly detected, but this detection process is complicated and takes a long time. High level requirements, high requirements for electron microscope equipment, high maintenance costs and testing costs

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  • Method for testing oxide and slag inclusion in magnesium alloy
  • Method for testing oxide and slag inclusion in magnesium alloy
  • Method for testing oxide and slag inclusion in magnesium alloy

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Embodiment Construction

[0016] In order to further understand the content of the present invention and highlight the advantages of the present invention, specific implementation modes are described in detail below with reference to the accompanying drawings.

[0017] Prepare samples

[0018] A cold shock test block with a diameter of 40 mm and a thickness of 12 mm was cast in a resistance furnace. The end face of the cold shock test block is turned to a thickness of 10mm, and the surface is finely ground and polished with sandpaper, and then subjected to ultrasonic vibration treatment.

[0019] Ultrasonic shock treatment

[0020] Adjust the output power of the ultrasonic oscillator to 80W (it can be adjusted within 50-1800W according to different test pieces). The container is made of stainless steel, with a volume of about 2 liters and about 600ml of distilled water inside. The test piece is placed on the bottom of the container with the polished side up, and the frequency is 46kHz (can be adjuste...

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Abstract

The invention relates to a detection method for oxides and slag inclusion in a magnesium alloy, mainly comprising the following steps: a magnesium test piece is grinded and polished and then placed into a distilled water container for ultrasonic wave vibration processing; nepheloid traces are generated on the surface of the magnesium alloy test piece, and a scanning electronmicroscope and an electronic microprobe instrument are used for analysis. The detection method has the advantages of strong maneuverability, high accuracy, quick detection speed and so on.

Description

technical field [0001] The invention relates to a method for detecting oxides and other impurities in magnesium alloys, in particular to a method for real-time detection of oxides and other impurities in the magnesium alloy production process. Background technique [0002] The strong oxidation ability of magnesium metal is its unique chemical characteristic. Therefore, in the process of producing magnesium alloy castings, a lot of MgO and impurity slag inclusions will be produced in the environment of high temperature and high pressure, forming an oxide film on the magnesium alloy, oxidizing The film is dominated by MgO. In the Mg-Al series magnesium alloy, Mg is mainly used as the matrix and the intermetallic compound Mg 17 al 12 The oxide film of magnesium alloy is mainly composed of MgO film, and the spinel (MgAl 2 o 4 ) often in MgO film or Mg 17 al 12 Formed at the interface of the compound and the substrate. Oxide film will have adverse effects on magnesium allo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/32G01N23/04
Inventor 张俊仁
Owner KUANGYUE TECH (LINYI) CO LTD
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