真空电子技术Issue(1)：14-17,4.
一种基于试验和理论推导的金属材料高温弹性模量的提取方法
High Temperature Modulus of Elasticity Extraction Method of Metal Materials Based on Experiments and Theoretical Derivation
摘要
Abstract
Some physical properties of refractory metal materials can't be tested directly at high temperature due to limitations of existing test methods and means.High temperature Young's modulus extraction method based on experimental data and theoretical derivation was proposed to solve the problem.On the basis of the test data at low temperature (under 300℃),a fitting regression equation was established to obtain the Young's modulus value of material above 1000℃ by extrapolation.This method solves the problem that the Young's modulus of refractory metal materials cannot be directly measured accurately at high temperature because of material oxidation.It can also provide accurate simulation of materials for product reliability design,and improve the simulation accuracy effectively.关键词
难熔金属材料/高温弹性模量/氧化/可靠性设计Key words
Refractory metal materials/High temperature Young's modulus/Oxidation/Reliability design分类
信息技术与安全科学引用本文复制引用
宋芳芳,恩云飞,吕东亚,何小琦,许沙,李斌..一种基于试验和理论推导的金属材料高温弹性模量的提取方法[J].真空电子技术,2017,(1):14-17,4.基金项目
国家重点实验室基金(行波管微小结构模态试验验证技术研究9140C030605140C03015) （行波管微小结构模态试验验证技术研究9140C030605140C03015）
