采用Thermecmastor-Z型热模拟机对Haynes230合金进行变形温度为950～1250℃,应变速率为0.001～10 s1范围内的高温压缩试验,并利用OM和TEM分析研究了热变形组织演化特征和动态再结晶形核机制.结果表明:动态再结晶晶粒尺寸和体积分数随着变形温度的升高而增大和增多,随着应变速率的升高而变小和减少;晶界弓出是合金动态再结晶的主要形核机制,项链组织在热变形组织演化过程中起着重要作用；动态再结晶稳态晶粒尺寸Dss与Z参数之间符合幂函数关系.
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