金属加工（热加工）Issue(4)：35-39,5.
Fe元素对TC4钛合金熔化温度的影响
Influence of Fe on melting temperature of TC4 titanium alloy
范姣 1林云轩 1高鹏 1邢立军1
作者信息
- 1. 湖南星途航空航天器制造有限公司 湖南株洲 412000
- 折叠
摘要
Abstract
During the heat treatment of thin walls of TC4 titanium alloy for aviation,the process affected is prone to oxidation and intercrystal corrosion.If heated with other materials,it is easy to cocrystalize with the Fe element in it,forming a low melting point eutectic reaction product that melts at low temperature.The purpose of this paper is to study the effect of Fe element in different materials on the melting temperature of TC4 titanium alloy.Select typical aviation materials with different Fe content of GH4169,06Cr18Ni9 and TC4,and comparatively analyzed the tissue morphology and eutectic reaction product FeTi of the three groups of GH4169+TC4,06Cro18Ni9+TC4 and GH4169+06Cr18Ni9 after being heat treated at 1170℃with a temperature of 40min.The composition of the eutectic product FeTi produced by heat treatment was analyzed using a Bruker Sititan 300 spectrometer and an Axio Observer Zeiss micrograph.The results showed that when the temperature rose to the FeTi cocrystallization temperature point(the minimum cocrystallizing temperature was 1085℃),The eutectic reaction between Fe and Ti in the low melting point eutectic region of TC4 titanium alloy occurs in different samples to form the eutectic reaction compound FeTi,the higher the Fe content,the more obvious the reaction.and as the temperature increased,the FeTi eutectic reaction organization melted to form a liquid phase,thereby reducing the melting temperature of the TC4 titanium alloy.This study can provide theoretical guidance for vacuum heat treatment of TC4 titanium alloy components used in aviation.关键词
Fe元素/TC4钛合金/熔化温度/共晶Key words
Fe element/TC4 titanium alloy/melting temperature/eutectic引用本文复制引用
范姣,林云轩,高鹏,邢立军..Fe元素对TC4钛合金熔化温度的影响[J].金属加工（热加工）,2025,(4):35-39,5.
