Detection method for determining surface quality of titanium alloy components after being subjected to vacuum heat treatment

Abstract

The invention provides a detection method for determining the surface quality of titanium alloy components after being subjected to vacuum heat treatment. The detection method comprises two steps of preparing standard sample pieces, contrasting and determining. The step of preparing the standard sample pieces comprises the following processes of firstly selecting eight titanium alloy component samples; then numbering the eight titanium alloy component samples; subsequently, putting the numbered titanium alloy component samples into an air furnace respectively for carrying out heat treatment, enabling different sample piece colors to correspond to different temperatures, and taking the titanium alloy component sample pieces subjected to heat treatment as the standard sample pieces; finally dividing the eight standard sample pieces to 1-8 grades according to the principle that the thicknesses of surface oxidation films are in one-to-one-correspondence with the surface colors; determining which grades in the 1-8 grades are qualified and which grades are unqualified according to oxidation color samples of different the titanium alloy components. The step of contrasting and determining comprises the following steps: contrasting colors of the titanium alloy component samples subjected to vacuum heat treatment to the colors of the eight standard sample pieces, and determining which grade the titanium alloy component samples belong to, so as to quickly and accurately determine the quality of vacuum heat treatment surfaces of the titanium alloys, and guarantee the vacuum heat treatment quality and the production efficiency of parts.

Description

technical field [0001] The invention relates to a detection method for judging the surface quality of a titanium alloy component after vacuum heat treatment, which is used for testing the surface quality of the titanium alloy component after vacuum heat treatment. Background technique [0002] In the field of titanium alloy heat treatment, vacuum heat treatment is widely used. Since the surface quality of titanium alloy after vacuum heat treatment directly affects the impact and fatigue properties of parts, the surface quality of titanium alloy components needs to be strictly controlled during vacuum heat treatment, but there is no surface quality of titanium alloy after vacuum heat treatment in the existing domestic titanium alloy standards. The inspection basis and standards usually rely on the subjective judgment of the operator, so the randomness is relatively large, which seriously affects the quality and production efficiency of the parts. Contents of the invention ...

AI Technical Summary

Problems solved by technology

Since the surface quality of titanium alloy after vacuum heat treatment directly affects the impact and fatigue properties of parts, the surface quality of titanium alloy components needs to be strictly controlled during vacuum heat treatment, but there is no surface quality of titanium alloy after vacuum heat treatment in the existing domestic titanium alloy standards. The inspection basis and standards usually rely on the subjective judgment of the operator, so the randomness is relatively large, which seriously affects the quality of parts and production efficiency.