涂层杨氏模量的测量方法

The Young’s modulus is the most important materials parameter, which is used to evaluate the characteristic of coatings(or thin films).The stress-strain behavior, contact stress field, cracking, spalling and residual stress states of coatings systems are all functions of the Young’s modulus. In this paper, the methods for measuring the Young’s modulus are introduced, as well as principle and applicable domain for each method is stated. The review can provide some foundation for choosing the method to measure the Young’s modulus of coatings or thin films.