两相区锻造TC11钛合金显微组织参数与拉伸性能的定量关系

doi:10.13251/j.issn.0254-6051.2025.12.004

金属热处理 ›› 2025, Vol. 50 ›› Issue (12): 23-28.DOI: 10.13251/j.issn.0254-6051.2025.12.004

两相区锻造TC11钛合金显微组织参数与拉伸性能的定量关系

王伟, 刘显昊, 罗炽铖, 侯妍, 王成, 丁士杰, 宫鹏辉, 孙壮

西安建筑科技大学冶金工程学院, 陕西西安 710055

收稿日期:2025-09-08 修回日期:2025-11-01 发布日期:2026-01-06
作者简介:王伟(1985—),男,教授,博士,主要研究方向为钛合金先进成形技术,E-mail: gackmol@163.com
基金资助:
国家自然科学基金面上项目(51975450);陕西省三秦英才特殊支持计划科技创新领军人才项目(Z20240574);陕西省重点研发计划(2023-BGY-383);陕西省重点研发项目(2023GXLH-063);陕西省教育厅服务地方专项科研计划项目(22JC047)

Quantitative relationship between microstructural parameters and tensile properties of TC11 titanium alloy forged in two-phase region

Wang Wei, Liu Xianhao, Luo Zhicheng, Hou Yan, Wang Cheng, Ding Shijie, Gong Penghui, Sun Zhuang

School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an Shaanxi 710055, China

Received:2025-09-08 Revised:2025-11-01 Published:2026-01-06

摘要/Abstract

摘要： 采用ImageJ软件,定量表征了在不同两相区锻造温度下TC11钛合金的初生α相含量、尺寸以及次生α相宽度、长宽比,然后结合室温拉伸性能建立了二者的定量关系。结果显示,锻造温度每升高20 ℃,初生α相平均含量降低约2.4%,初生α相平均晶粒尺寸降低0.36 μm,次生α相宽度平均增加0.0525 μm,次生α相长宽比增加2.635。借助 IBM SPSS Statistics 软件构建了显微组织参数和室温拉伸性能的多元非线性回归模型,表明两相区锻造TC11钛合金显微组织参数和室温拉伸性能之间符合多元非线性回归关系。

关键词: TC11钛合金, 显微组织, 拉伸性能, 定量关系, 多元非线性回归

Abstract: The content and size of primary α phase, as well as the width and aspect ratio of secondary α phase in TC11 titanium alloy forged at different temperatures in the two-phase region, were quantitatively characterized by using ImageJ software. The quantitative relationships between these microstructural parameters and the room-temperature tensile properties were then established. The results show that with every 20 ℃ increase in forging temperature, the average primary α phase content decreases by about 2.4%, the average primary α grain size decreases by 0.36 μm, the average secondary α phase width increases by 0.0525 μm, and its aspect ratio increases by 2.635. A multivariate nonlinear regression model was further developed using IBM SPSS Statistics to describe the relationship between the microstructure and room-temperature tensile properties. The results indicate that the microstructural parameters and room-temperature tensile properties of the two-phase region forged TC11 titanium alloy follow a multivariate nonlinear regression relationship.

Key words: TC11 titanium alloy, microstructure, tensile properties, quantitative relationship, multivariate nonlinear regression

中图分类号:

TG146.2

王伟, 刘显昊, 罗炽铖, 侯妍, 王成, 丁士杰, 宫鹏辉, 孙壮. 两相区锻造TC11钛合金显微组织参数与拉伸性能的定量关系[J]. 金属热处理, 2025, 50(12): 23-28.

Wang Wei, Liu Xianhao, Luo Zhicheng, Hou Yan, Wang Cheng, Ding Shijie, Gong Penghui, Sun Zhuang. Quantitative relationship between microstructural parameters and tensile properties of TC11 titanium alloy forged in two-phase region[J]. Heat Treatment of Metals, 2025, 50(12): 23-28.

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两相区锻造TC11钛合金显微组织参数与拉伸性能的定量关系

Quantitative relationship between microstructural parameters and tensile properties of TC11 titanium alloy forged in two-phase region

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