The invention discloses a device for testing the
hardness,
fracture toughness and
residual stress of a brittle material with an indentation method, belonging to the technical field of material property representation. The device comprises a frame and an image acquiring
system, wherein the frame is provided with an
eye lens, a height-adjustable testing operation platform and an adjusting rotating wheel; a loading
system is arranged in the frame, and comprises a fixing support base, a lever, a mandrel, a hanging rod, a middle main shaft and a second motor; and a first motor and the second motor of the loading
system are connected with a computer through an I / O (Input / Output)
control card. In the invention, the conventional
digital image low-load Vickers
hardness meter is improved, so that the micro-
hardness of a material can be directly tested, and the
fracture toughness and
residual stress of an interface system of the brittle material and a brittle
coating film material can be directly tested; and the device can be widely applied to departments such as industrial enterprises, universities, academies and the like for rapidly detecting relevant indexes.