【摘 要】
：
用热压逐层叠置的Ti/Al箔的方法制备具有全片层结构的γ-TiAl波纹板.热处理工艺为640℃,15h+850℃,35 h+1350℃,2h.用扫描电镜(SEM)和X射线衍射(XRD)分析热处理过程中产生的
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用热压逐层叠置的Ti/Al箔的方法制备具有全片层结构的γ-TiAl波纹板.热处理工艺为640℃,15h+850℃,35 h+1350℃,2h.用扫描电镜(SEM)和X射线衍射(XRD)分析热处理过程中产生的金属间化合物相.在Al箔完全消耗之前,Ti/Al界面仅有TiAl3相生成.在850℃热压35 h后,基体由α-Ti,a2-Ti3Al,γ-TiAl和TiAl2相组成.冷却得到全片层结构,大部分片层与板面的夹角小于30°.采用较薄的原料箔可以获得相对细小的微观组织.
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