Amorphous alloy coating tension device using with nanoindentor and use method thereof

Abstract

The invention relates to an amorphous alloy coating tension device using with a nanoindentor. The amorphous alloy coating tension device comprises a base, a high-precision worm type coarse and fine tuning micrometer head, fixed vertical columns, a movable baffle plate, a fixed baffle plate, an elastic base sheet, a motor, a power source of the motor, and a gear, wherein the high-precision worm type coarse and fine tuning micrometer head is positioned between the fixed vertical columns, and one end of the high-precision worm type coarse and fine tuning micrometer head is connected with the movable baffle plate; the fixed baffle plate is positioned at one end of the base, and is connected with the whole base; the elastic base sheet is clamped between the movable baffle plate and the fixed baffle plate; the motor and the power source of the motor are fixedly arranged on the base; a transmission shaft of the miniature motor is connected with the high-precision worm type coarse and fine tuning micrometer head through a gear. When the amorphous alloy coating tension device is jointly used with the nanoindentor to test the hardness, and the micronanometer rheological mechanics behaviors of viscoelasticity, anelasticity and the like, the continuous tensile deformation of amorphous alloy is realized, the deformation amount and strain are controllable, and the precision is high. The device is especially suitable for testing the micronanometer rheological mechanics behaviors of coating material under different tensile and strain states in the tensile and deformation process.

Description

technical field [0001] The invention relates to a technology for studying the structure evolution and related mechanical behavior of amorphous alloy materials by using a nano-indenter, and in particular to an amorphous alloy coating stretching device used in conjunction with a nano-indenter and a method for using the same. Background technique [0002] Amorphous alloys have unique mechanical properties such as high elasticity and high strength, as well as functionalities such as soft magnetism and corrosion resistance, and are a class of new materials with broad application prospects. At the same time, amorphous alloy is an ideal model material for studying the deformation mechanism of amorphous materials. Therefore, the material structure mechanism of amorphous alloy deformation has always been the focus and hot spot of people's research. Amorphous alloys have a nominal elastic region of more than 2%. Studies have shown that in the nominal elastic region, amorphous alloys e...

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Problems solved by technology

However, due to the limited size of the sample chamber of the nanoindenter, and during the test, the test accuracy is very sensitive to the temperature change of the sample chamber, that is, a slight temperature disturbance will also produce significant temperature drift.

Therefore, it is difficult to combine traditional large-scale mechanical experimental equipment with nano-indentation instruments to detect the evolution of micro-nano mechanical behavior during stress.

In addition, the nano-indenter is used to test the mechanical behavior of micro-nano, especially in the low-load mode. The indentation depth is usually at the nanometer level, so the flatness of the sample surface is very high. General methods such as mechanical grinding of the surface of large-sized samples It is difficult to meet the requirements of the test on the sample surface

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