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Test report of Huazhong University of Science and Technology-2 [Dec 02,2013]
Test report of Huazhong University of Science and Technology-2

4 Metallographic structure

The microstructure pictures of quenching and annealing areas are as shown in Figure 2, Figure 3 and Figure 4.

 The microstructure of quenching area is composed of fine tempered martensite, evenly distributed granular carbide and a spot of retained austenite; and the microstructure of annealing area is composed of spheroidite and evenly distributed surplus granular carbide.

 5 Statement

1) The test result is only specific to the samples.

2) The test result is only for your reference, thus it may not be used as the official basis for product acceptance.

3) Our laboratory is not responsible for the civil or legal disputes caused by the test results.

4) Tested by: Wan Li, PhD and associate professor; Foundry Laboratory, Material College, Huazhong University of Science and Technology