综述了硼对钛合金铸锭晶粒尺寸、成形能力以及力学性能影响的国内外研究进展.硼添加量(质量分数)为0．1％时，钛合金铸锭晶粒尺寸得到显著细化，合金成形能力和力学性能显著提高.硼对钛合金的晶粒细化作用归因于成分过冷机制，而细小的晶粒尺寸有助于改善合金成形能力和力学性能.目前对含硼钛合金直接轧制工艺的优化及其疲劳和蠕变性能的研究还不够深入，今后可从其冷轧成形能力、轧制对疲劳和蠕变性能的影响等方面展开研究.
The research progress of boron effects on the grain size,formability and mechanical properties of titanium alloy ingots are summarized.With the addition of 0.1wt% boron,the grain size of titanium alloy ingot is refined significantly and the formability and mechanical properties are improved remarkably.The grain refinement effect of boron on titanium alloy is attributed to the constitutional supercooling mechanism,and the refined grains contributed to the improvement of formability and mechanical properties of the alloys.The present studies of the direct rolling process optimization and the fatigue and creep behavior of boron containing titanium alloys are not deep enough.In future,the research can be focused on the cold rolling formability of these alloys and on the rolling influences on their fatigue and creep performance.
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