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Method for testing chemical components of in-situ TiB2 ceramic particle reinforced aluminum alloy

A technology of ceramic particles and chemical composition, which is applied in the characterization of the chemical composition of aluminum-based composite materials, in-situ TiB2 ceramic particle-reinforced aluminum alloy chemical composition sample dissolution and testing fields, and can solve the problem of narrow heating interval and difficulty in adding control to the heating interval Uncertainty, difficulties of access and storage

Pending Publication Date: 2021-09-14
COMAC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Yet the method of CN 108387571A uses organic strong alkaline solution and inorganic strong alkaline solution, and strong oxidant is selected as high oxidation electrode potential powder for use, and organic strong alkaline solution and high oxidation electrode potential powder are all very expensive, and difficult in the factory Acquisition and Storage Deficiencies
Moreover, the heating range of CN 108387571A is narrow, and the heating temperature is 80-150°C, more preferably 90-120°C, and most preferably 95-105°C. The narrow heating range also brings difficulty and uncertainty in adding control

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0084] Inductively coupled plasma atomic emission spectrometry (ICP) samples were prepared and dissolved (except Si element) and tested.

[0085] 1. Preparation

[0086] Design composition (weight%): Ti: 1.54; B: 0.7; Mg: 0.5; Cu: 0.9; Fe: <0.1; Si: 6.5.

[0087] Process steps:

[0088] a) Drilling and sampling from the ingot of the parent metal, the drilling position is as shown in Figure 1 in ASTM B985, and the drilling depth at each position is at least 25mm;

[0089] b) Take a washed and dried 150ml beaker, air-cool to room temperature, put it on the balance, reset to zero, and then weigh about 0.2g of material debris;

[0090] c) Inject 75ml of deionized water into the beaker and let it stand for 5 minutes (minutes);

[0091] d) Take the pre-configured nitrate-hydrochloride acid mixture (HNO 3 : HCl=2:5) 40ml, placed in a polytetrafluoroethylene container;

[0092] e) Slowly drop 2ml of nitric acid hydrochloric acid mixture (HNO 3 : HCl=2:5), after observing that wh...

Embodiment 1-2

[0107] Same as Example 1, except that the heating time in step i) is 49h. The measurement results are shown in Table 1 below.

Embodiment 1-3

[0109] Same as Example 1, the only difference is: the heating time in step i) is 60h. The measurement results are shown in Table 1 below.

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Abstract

The invention relates to a method for testing chemical components of an in-situ TiB2 ceramic particle reinforced aluminum alloy. The method comprises the following steps: (A) dissolved sample preparation: (A1) dissolving an in-situ TiB2 ceramic particle reinforced aluminum alloy material by using a nitrate acid mixed solution with the ratio of HNO3 to HCl being 2: 3-2: 7; (A2) heating the solution obtained in the step (A1) to fully dissolve the material; and (A3) fixing the volume of the solution obtained in the step (A2) to obtain a to-be-detected dissolved sample, and (B) sample dissolution test.

Description

technical field [0001] The present disclosure belongs to the technical field of detection and analysis of composite materials, and in particular relates to in-situ TiB 2 Dissolution sample and test method for chemical composition of ceramic particle reinforced aluminum alloys, suitable for in situ TiB 2 The precise determination of the chemical composition of ceramic particle reinforced aluminum alloy is mainly used for the characterization of the chemical composition of aluminum matrix composites. Background technique [0002] In situ self-generated TiB 2 Ceramic particle reinforced aluminum matrix composites are to achieve TiB in pure aluminum or aluminum alloy matrix through in situ self-generation. 2 The controllable growth of ceramic particles is obtained, and the control and improvement of its performance cannot be separated from the accurate determination of various elemental components in the composite material. Inductive Coupled Plasma Atomic Emission Spectrometr...

Claims

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Application Information

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IPC IPC(8): G01N21/73G01N1/28
CPCG01N21/73G01N1/28
Inventor 王浩伟李东李红萍张韧章骏李宇罡陈东夏存娟耿继伟
Owner COMAC
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