【摘要】 （α＋ γ）两相区锻造能够细化高Ｎｂ－ＴｉＡｌ合金铸态组织，锻造出表面光洁平整的饼材。具有双态组织的合金压缩性能比铸态全片层组织压缩性能好。同时，双态组织保持高温强度。更多还原

【Abstract】 The as cast microstructures of TiAl based alloys containing Nb can be refined through α+γ phases forged with beautiful and plain surface pancakes.The alloy with duplex microstructure exhibits excellent properties compared with as cast ones and maintains better mechanical properties at high temperature.更多还原