Test method for evaluating initial wear resistance of austenite high manganese steel under high impact load

A technology of impact load and lower austenite, which is applied in the field of wear resistance evaluation of metal materials, can solve the problems that the influence of initial wear resistance is not considered, and it cannot be used to evaluate the initial wear resistance of austenitic high manganese steel.

Inactive Publication Date: 2010-09-15
DALIAN JIAOTONG UNIVERSITY
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Problems solved by technology

However, they cannot be used to evaluate the initial wear resistance of austenitic high-manganese steels, either on the materials studied or on the selection of test parameters for the evaluation method of wear resistance, and the materials evaluated in these documents Abrasion resistance is the amount of wear of

Method used

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  • Test method for evaluating initial wear resistance of austenite high manganese steel under high impact load
  • Test method for evaluating initial wear resistance of austenite high manganese steel under high impact load
  • Test method for evaluating initial wear resistance of austenite high manganese steel under high impact load

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Experimental program
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Effect test

Embodiment 1

[0024] The high manganese steel samples after aging treatment by different processes were subjected to a single pendulum impact scratch test under the conditions of an initial pendulum angle θ of 50° and a table lift ΔH of 60 μm. The test results are shown in Table 1:

[0025] Table 1

[0026]

[0027] It can be seen that the specific energy consumption value of the austenitic high manganese steel sample is the largest after aging at 600 ℃ for 1 hour.

Embodiment 2

[0029] The high-manganese steel samples after aging treatment by different processes were subjected to a single pendulum impact scratch test under the conditions of an initial pendulum angle θ of 50° and a table lift ΔH of 100 μm. The test results are shown in Table 2:

[0030] Table 2

[0031]

[0032] It can be seen that the specific energy consumption value of the austenitic high manganese steel sample is the largest after aging at 600 ℃ for 1 hour.

Embodiment 3

[0034] The high-manganese steel samples after aging treatment by different processes were subjected to a single pendulum impact scratch test under the conditions of an initial pendulum angle θ of 60° and a table lift ΔH of 40 μm. The test results are shown in Table 3:

[0035] table 3

[0036]

[0037] It can be seen that the specific energy consumption value of the austenitic high manganese steel sample is the largest after aging at 600 ℃ for 1 hour.

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Abstract

The invention relates to a test method for evaluating the initial wear resistance of austenite high manganese steel under a high impact load. The test method comprises the following steps of: (1) performing a simple pendulum impact scratch test by using a simple pendulum scratch testing machine; (2) calculating energy E consumed in a scratch forming process; (3) calculating the volume V of a sample surface scratch; and (4) calculating specific dissipating energy e according to a formula e=E/V and judging the level of the initial wear resistance of the austenite high manganese steel under the high impact load according to the magnitude of the specific dissipating energy e under the same test parameter condition. The simple pendulum impact scratch test has a function of simulating the micro-plowing and micro-cutting of abrasive wear, and has the impact energy loading characteristic when a single abrasive particle scratches a material surface with a certain impact force and the working condition is similar to that of the austenite high manganese steel under the high impact load, so the specific dissipating energy e obtained under the simple pendulum impact scratch test can represent the initial wear resistance of the material under the high impact load.

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Claims

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Application Information

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Owner DALIAN JIAOTONG UNIVERSITY
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