孙欢迎,赵军,刘翊安,张泉,曹京霞,黄旭.一种新型低成本阻燃钛合金的微观组织与力学性能[J].稀有金属材料与工程,2019,48(6):1892~1896.[SUN Huanying,ZHAO Jun,Liu Yian,ZHANG Quan,CAO Jingxia,HUANG Xu.Microstructure and Mechanical Properties of a New Type Burn Resistant Titanium Alloy with Lower Cost[J].Rare Metal Materials and Engineering,2019,48(6):1892~1896.]
一种新型低成本阻燃钛合金的微观组织与力学性能
投稿时间:2018-11-28  修订日期:2018-12-23
中文关键词:  阻燃钛合金  低成本  微观组织  力学性能
基金项目:河北省高等学校科学技术研究重点项目(ZD2018239);北华航天工业学院科研基金重点项目(ZD-2016-03)资助
中文摘要:
      研究了一种名义成分为Ti-25V-15Cr-5Mo-0.25Si-0.08C的新型低成本阻燃钛合金TF-X,通过三次真空自耗熔炼制备了φ120mm铸锭,经包套挤压得到φ25mm棒材,观察了铸锭和挤压棒材的微观组织,测试并分析了挤压棒材的室温和高温拉伸性能、热稳定性能、高温蠕变性能。结果表明:TF-X合金具有与TF550合金大致相同的微观组织;TF-X合金室温及高温拉伸强度高于TF550合金,并且具有很好的塑性;试验条件下,TF-X合金的热稳定性能低于TF550合金,熔炼过程中应该严格控制氧含量;TF-X合金在540℃/250MPa/100h条件下蠕变性能与TF550合金相当,显著高于Ti40合金。
Microstructure and Mechanical Properties of a New Type Burn Resistant Titanium Alloy with Lower Cost
英文关键词:Burn Resistant Titanium Alloy  Low Cost  Microstructure  Mechanical Property
英文摘要:
      The ingot with 120mm diameter of Ti-25V-15Cr-5Mo-0.25Si-0.08C alloy which is a new type burn resistant titanium alloy with lower cost was produced by vacuum arc remelting in this study. This ingot was forged into bars with 25mm diameter by sheathed extrusion. The microstructures of the ingot and extrusion bars of TF-X alloy were studied. The tensile, thermal stability and creep properties of extrusion bars of TF-X alloy were tested under different conditions. The results show that microstructures of TF-X alloy, which has better ductility in tensile test, were roughly the same as TF550 alloy. In addition, TF-X alloy has higher strength and worse thermal stability than TF550 alloy, and its creep property better than Ti40 alloy was equivalent to TF550 alloy.
作者单位E-mail
孙欢迎 北华航天工业学院 huanying417@163.com 
赵军 北华航天工业学院  
刘翊安 北华航天工业学院  
张泉 北华航天工业学院  
曹京霞 北京航空材料研究院  
黄旭 北京航空材料研究院  
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