微量硼改性对钛合金组织和性能的影响

Effect of Modification with Trace Boron on Microstructure and Properties of Titanium Alloys

硼(B)元素改性的钛合金由于生成TiB金属间化合物而具有更高的强度、刚度和耐磨性等。目前,TiB已用作钛合金的增强相,硼改性钛合金具有扩大钛合金使用范围的潜力,并已引起了人们广泛关注。综述了微量硼改性对钛合金铸态组织和性能的影响,以及微量硼元素改性与热加工叠加或热处理对钛合金组织和性能的影响。

Boron(B)modified titanium alloys have higher strength,stiffness and wear resistance due to the formation of TiB intermetallic compounds.TiB has been successfully used as reinforcing phase of titanium alloys.Boron modified titanium alloys have the potential to expand the application range of titanium alloys and have attracted wide attention.The effects of trace boron modification on the as-cast structure and properties of titanium alloys and the effects of trace boron modification superimposed with hot working overlapping or heat treatment on the structure and properties of titanium alloys were reviewed.