[1]刘人彰 孙志超 苏宏业 王钰 印志坤 李轩屹.Ti6242S钛合金差温热处理过渡区温度场预测[J].中国材料进展,2026,45(04):001-9.
　LIU Renzhang,SUN Zhichao,SU Hongye,et al.Prediction of Temperature Field in the Transition Region of Ti6242S Titanium Alloy under Gradient Heat Treatment[J].MATERIALS CHINA,2026,45(04):001-9.
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Ti6242S钛合金差温热处理过渡区温度场预测()

中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
45
期数:
2026年04
页码:
001-9
栏目:
出版日期:
2026-04-30

文章信息/Info

Title:
Prediction of Temperature Field in the Transition Region of Ti6242S Titanium Alloy under Gradient Heat Treatment
作者:
刘人彰 孙志超 苏宏业 王钰 印志坤 李轩屹
西北工业大学材料学院，陕西 西安 710072
Author(s):
LIU Renzhang; SUN Zhichao; SU Hongye; WANG Yu; YIN Zhikun; LI Xuanyi
School of Materials Science and Engineering, Northwestern Polytechnical University， Xi’an 710072, China
关键词:
Ti6242S; 差温热处理; 梯度温度场; 有限元数值模拟
Keywords:
Ti6242S;  Differential heat treatment;  Gradient temperature field;  Finite element numerical simulation
分类号:
TG166.5
文献标志码:
A
摘要:
差温热处理为钛合金双性能整体叶盘的成形制造提供了新的途径，叶盘过渡区稳定可控的梯度温度场是其获得渐变组织的关键。本文确定了Ti6242S钛合金不同温度下的综合换热系数，建立了Ti6242S钛合金棒材差温热处理过渡区温度场有限元预测模型，研究了工艺参数对于过渡区温度场的影响规律，结果表明，高低温区加热温差越大，过渡区温度梯度越大；减小棒材直径导致过渡区温度梯度增大，过渡区温差随着隔热板的宽度的增大而增大，保温时间对过渡区温度场影响不显著。由于材料导热与换热系数随温度改变，过渡区中间点温度略高于过渡区最高温与最低温平均值；受隔热板遮挡的影响，棒材靠近隔热板的部分接收与散发的热辐射量较低，使得实际的梯度温度场的宽度大于隔热板的宽度。
Abstract:
The gradient heat treatment process provides a new way for the forming and manufacturing dual-performance blisks of titanium alloy. A stable and controllable gradient temperature field is the key to obtain a gradual gradient microstructure in the transitional region of the blisks. This article established a finite element numerical simulation model of the temperature field in the transition region of Ti6242S titanium alloy bar during gradient heat treatment based on the comprehensive heat transfer coefficient at different temperatures of Ti6242S titanium alloy. The effects of process parameters on temperature field were revealed. It is found that the larger the temperature difference between high and low temperature zone is, the larger the temperature difference in transitional region is. When the width of transitional region is fixed, the smaller the diameter of the bar is, the larger the temperature gradient can be obtained. When other conditions are given, the wider the heat insulation plate, the greater the temperature difference in the transitional region. Meanwhile, holding time have no significant effect on temperature field in transitional region. The temperature at the midpoint of the transition zone is slightly higher than the average of the highest and lowest temperatures in the transition zone, which is caused by the change of the thermal conductivity and heat transfer coefficient with temperature. Due to the obstruction of the insulation board, the bar near the insulation board receives and emits less heat radiation, resulting in a wider gradient temperature field than the insulation board.
更新日期/Last Update: 2026-03-31