通过定量金相方法系统研究了热等静压温度、时间、压力等工艺参量对ZTC4钛合金显微组织的影响规律.结果表明:相对于ZTC4钛合金原始铸态组织,经过热等静压处理后试样的β晶粒尺寸和α片层厚度均明显长大.随着热等静压温度的升高和保温时间的延长,β晶粒尺寸和α片层厚度分别增长了40～70μm和0.6～1μm,并且增长趋势呈近线性；而随着热等静压压力的增加,β晶粒尺寸和α片层厚度则呈现出先增加后减小的规律.相对原始铸态组织,热等静压处理后ZTC4钛合金组织β晶粒尺寸和α片层厚度分别增长12％～25％和57％～100％.
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