Ti-6Al-4V合金网篮组织与拉伸性能定量关系研究  

Quantitative Analysis on Microstructure-Tensile Property Relationship for Ti-6Al-4V Alloy with Basket Weave Structure

作　　者：石晓辉[1] 曾卫东[1] 孙宇[1] 韩远飞[1] 赵永庆[2] 郭萍[2] 

机构地区：[1]西北工业大学凝固技术国家重点实验室,陕西西安710072 [2]西北有色金属研究院,陕西西安710016

出　　处：《稀有金属材料与工程》2016年第9期2327-2331,共5页Rare Metal Materials and Engineering

基　　金：教育部博士点基金(20116102110015);国家重点基础研究发展计划("973"计划)(2007CB613807)

摘　　要：建立钛合金显微组织-拉伸性能定量关系对于组织-性能的控制及优化具有重要意义。基于定量金相学和体视学原理,利用多元非线性回归方法建立了Ti-6Al-4V合金网篮组织-拉伸性能定量关系模型。模型自变量包括片状α相厚度、片状α相长宽比,因变量为合金的室温拉伸性能。经验证表明,所建立的多元回归模型对合金的拉伸性能具有较高的预测精度,预测值与实验值相吻合。It is of great value to establish the microstructure-tensile property relationship for the control and optimization of titanium alloys＇ properties. Based on quantitative metallography and stereology, the quantitative relationship between microstructure and tensile property for Ti-6Al-4V alloy with basket-weave structure was established using multielement non-linear regression. In this model, the independent variables included thickness and aspect ratio of lamellar α phase, while the dependent variables were strength and ductility of Ti-6Al-4V alloy. The results show that the multiple regression model built in present paper can precisely describe the microstructuretensile property relationship of Ti-6Al-4V alloy with basket-weave structure, namely the prediction values are consistent with the experimental.

关 键 词：网篮组织 拉伸性能 定量关系 TI-6AL-4V 多元非线性回归 

分 类 号：TG146.23[一般工业技术—材料科学与工程]