随着航空工业的发展,T_(C4)钛合金大规格棒材的需用量日益增加,我厂72年开始接受T_(C4)合金大规格锻棒(φ60～φ200毫米)的订货任务,然而,加工参数对机械性能的影响还没有系统地鉴定过,因此,几年来生产中出现的质量问题:有时个别室温塑性和冲击性能偏低,组织不均匀等问题都没有得到很好的解决,为了较全面了解生产工艺 With the development of the aviation industry, the demand for T_ (C4) titanium alloy large-size bar is increasing day by day. In 72 years, our factory began to accept the ordering task of large-size T_ (C4) alloy forged bar (φ60 ~ φ200 mm) The influence of processing parameters on the mechanical properties has not been systematically identified. Therefore, quality problems in production over the past few years: sometimes the individual problems of low room temperature plasticity and impact properties and uneven microstructure have not been well solved. In order to compare A comprehensive understanding of the production process