Method for testing mechanical property of brazing microstructure

The invention discloses a method for testing the mechanical property of a brazing microstructure, and relates to the field of material mechanical property testing, and the method comprises the following steps: designing and preparing a tensile sample and an anti-pulling and anti-bending plate, placing the anti-pulling and anti-bending plate between an upper test plate and a lower test plate, and enabling a middle rib plate to be located in an opening; measuring the length and the width of the welding seam by adopting an optical measuring system; an extension device is installed on the tensile sample, the extension device is used for amplifying the scale distance of the tensile sample, and a COD gauge is matched with the extension device to carry out strain measurement; the upper test plate is installed on an upper clamp of a testing machine, the lower test plate and the anti-pulling and anti-bending plate are installed on a lower clamp of the testing machine, a tensile test is conducted, a stress displacement