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Observation method of platinum rhodium alloy metallographic structures

A technology of platinum-rhodium alloy and metallographic structure, which is applied in the field of material surface structure observation, can solve the problem of inconspicuous etching effect, achieve the effect of improving corrosion effect, good repeatability, and accelerating corrosion speed

Inactive Publication Date: 2017-12-15
西安诺博尔稀贵金属材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the electrolytic corrosion of platinum-rhodium alloy is carried out by reference to the above formula and method, and the etching effect is not obvious.

Method used

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  • Observation method of platinum rhodium alloy metallographic structures
  • Observation method of platinum rhodium alloy metallographic structures
  • Observation method of platinum rhodium alloy metallographic structures

Examples

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Effect test

Embodiment 1

[0033] The observation method of the platinum-rhodium alloy (Pt-10Rh) metallographic structure of the present embodiment comprises the following steps:

[0034]Step 1, the mosaic of platinum-rhodium alloy sample 6: cut platinum-rhodium alloy sample 6 on the Pt-10Rh alloy plate, in order to prevent the loss of platinum-rhodium alloy, adopt shearing machine to sample, the obtained platinum-rhodium alloy sample 6 The size is: length × width × height=10mm × 5.5mm × 3mm, a 10mm × 5.5mm surface of the platinum-rhodium alloy sample 6 is selected as the metallographic observation plane; the weight of the platinum-rhodium alloy sample 6 taken by weighing is 2.74g, then inlaid the alloy platinum-rhodium alloy sample 6 on the Yuzhou XQ-1 metallographic sample inlay machine, the specific process of the inlay is: put the cut platinum-rhodium alloy sample 6 in Yuzhou On the workbench of the XQ-1 metallographic sample mounting machine, and the metallographic observation plane of the platinum...

Embodiment 2

[0043] The observation method of the platinum-rhodium alloy (Pt-8Rh) metallographic structure of the present embodiment comprises the following steps:

[0044] Step 1, the mosaic of platinum-rhodium alloy sample 6: cut platinum-rhodium alloy sample 6 on the Pt-8Rh alloy plate, in order to prevent the loss of platinum-rhodium alloy, adopt shearing machine to sample, the obtained platinum-rhodium alloy sample 6 The size is: length × width × height = 6mm × 7mm × 3mm, take a 6mm × 7mm surface of the platinum-rhodium alloy sample 6 as the metallographic observation plane, and the weight of the platinum-rhodium alloy sample 6 taken by weighing is 2.32g , and subsequently inlay the alloy platinum-rhodium alloy sample 6 on the Yuzhou XQ-1 metallographic sample inlay machine. The specific process of the inlay is: place the cut platinum-rhodium alloy sample 6 in the Yuzhou XQ- On the workbench of Type 1 metallographic sample mounting machine, and the metallographic observation plane of ...

Embodiment 3

[0052] The observation method of the platinum-rhodium alloy (Pt-5Rh) metallographic structure of the present embodiment comprises the following steps:

[0053] Step 1, the mosaic of platinum-rhodium alloy sample 6: cut platinum-rhodium alloy sample 6 on the Pt-5Rh alloy plate, in order to prevent the loss of platinum-rhodium alloy, adopt shearing machine to sample, the obtained platinum-rhodium alloy sample 6 The size is: length × width × height = 7mm × 7mm × 2mm, take a 7mm × 7mm surface of the platinum-rhodium alloy sample 6 as the metallographic observation plane, and the weight of the platinum-rhodium alloy sample 6 taken by weighing is 2.17g , and subsequently inlay the alloy platinum-rhodium alloy sample 6 on the Yuzhou XQ-1 metallographic sample inlay machine. The specific process of the inlay is: place the cut platinum-rhodium alloy sample 6 in the Yuzhou XQ- On the workbench of Type 1 metallographic sample mounting machine, and the metallographic observation plane of ...

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Abstract

The invention discloses an observation method of platinum rhodium alloy metallographic structures. The observation method comprises following steps: 1, a cubic platinum rhodium alloy sample is obtained via cutting of a workpiece, one plane of the cubic platinum rhodium alloy sample is taken as a metallographic observation plane, and the platinum rhodium alloy sample is subjected to insetting using an insetting machine; 2, after insetting, the metallographic observation plane of the platinum rhodium alloy sample is subjected to polishing using a metallographic sample pre-polishing machine; 3, after polishing, the metallographic observation plane of the platinum rhodium alloy sample is subjected to mechanical polishing using a polishing machine until no obvious scratches or stains are observed on the metallographic observation plane; and 4, after mechanical polishing, the platinum rhodium alloy sample is delivered into a corrosion container containing a corrosive liquid, and after immersion corrosion, observation of the platinum rhodium alloy metallographic structure is carried out. The observation method is simple; requirements on experiment equipment and operation staff are low; repeatability is high; the observation method is suitable for observation of platinum rhodium alloy metallographic structures; alloy loss in preparation of the platinum rhodium alloy sample is extremely low; and heavy metal loss and waste are reduced.

Description

technical field [0001] The invention belongs to the technical field of material surface structure observation, and in particular relates to a method for observing the metallographic structure of a platinum-rhodium alloy. Background technique [0002] It is well known that the properties of metallic materials depend on their microstructure. On the basis of mastering the microstructure changes, the purpose of controlling and optimizing product quality can be achieved by adjusting process parameters. Therefore, the preparation of metallography that can truly and clearly reflect the microstructure becomes the basis of material research. It should be pointed out that the corrosion of platinum-rhodium alloy specimens is the core of the metallographic preparation process. [0003] Because of its strong corrosion resistance and oxidation resistance, excellent high-temperature mechanical properties and glass infiltration resistance and other advantages, platinum-rhodium alloy is wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N1/32G01N21/84
CPCG01N1/28G01N1/286G01N1/32G01N21/84G01N2001/2866
Inventor 贾志强史智锋贾勇赵涛余建军周龙海孟志军夏金华王松茂白新房
Owner 西安诺博尔稀贵金属材料股份有限公司
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