宽幅TC4钛合金带卷的研制
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摘要
TC4合金由于其变形困难、温度敏感性高,对变形条件要求严格,在国内外鲜有厂家对其进行带卷生产。通过热模拟试验预测TC4带卷变形抗力,带卷下线后观测其氧化层深度、化学成分、显微组织、力学性能。结果表明:大卷重宽幅TC4带卷可在热轧设备上制备,下线带卷吸气层深度约50μm,带卷经860℃退火后,其成分、力学性能均满足GB/T 3621对应要求。
As TC4 titanium alloy is hard to be deformed and sensitive to temperature,the process and deformation of this alloy needs strict conditions. There are almost no manufacturers domestic and foreign that can produce TC4 titanium alloy coil. In this paper,deformation stress of TC4 titanium alloy coil was calculated by the thermal simulation test. The thickness of oxide layer,chemical composition,microstructure and mechanical properties of the TC4 titanium alloy coil were analyzed after hot rolling. The result indicated that TC4 coil with high weight and width could be produced on the hot rolling mill,and the thickness of gas absorbing layer was about 50 μm. After annealing at 860 ℃,chemical composition and mechanical properties could meet the requirements of Chinese standard GB/T 3621.
As TC4 titanium alloy is hard to be deformed and sensitive to temperature,the process and deformation of this alloy needs strict conditions. There are almost no manufacturers domestic and foreign that can produce TC4 titanium alloy coil. In this paper,deformation stress of TC4 titanium alloy coil was calculated by the thermal simulation test. The thickness of oxide layer,chemical composition,microstructure and mechanical properties of the TC4 titanium alloy coil were analyzed after hot rolling. The result indicated that TC4 coil with high weight and width could be produced on the hot rolling mill,and the thickness of gas absorbing layer was about 50 μm. After annealing at 860 ℃,chemical composition and mechanical properties could meet the requirements of Chinese standard GB/T 3621.
引文
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[4]王牛俊,罗乾伟.TC4钛合金板热轧过程显微组织研究[J].机械设计与制造工程,2017,46(6):81.
[5]欧阳文博,谢英杰.轧制工艺对TC4中厚板组织及力学性能的影响[J].热加工工艺,2014,43(17):58.
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