通过形变加工和长期时效热处理 ,研究了 (C +N)复合强化的Fe 13Cr 17Mn(W ,V)奥氏体合金的稳定性和相平衡特点。结果表明 :在 50 0℃以下合金奥氏体稳定 ,不发生γ→α转变。采用 (C +N)复合添加晶粒细化 ,可有效抑制ε马氏体形成和σ相析出。 50 0～ 70 0℃长期时效后形变诱发大量碳化物析出 ,MS 点提高 ,加快形变诱发α′马氏体分解和再结晶 ,促使γ→α转变和σ相析出 ,合金奥氏体变得不稳定 Through the deformation processing and long-term aging heat treatment, the stability and phase balance of (C + N) -doped Fe 13 Cr 17 Mn (W, V) austenitic alloy were studied. The results show that austenite is stable below 50 0 ℃ without γ → α transformation. Using (C + N) composite grain refinement, can effectively inhibit the formation of ε martensite and σ precipitation. After aging at 50 0 ~ 70 0 C for a long time, a large amount of carbides will be precipitated and the MS point will increase to speed up deformation-induced α ’martensite decomposition and recrystallization, causing γ → α transformation and σ phase precipitation, and the alloy austenite becomes non- stable