样为学说动一分 o(MPa) δ(%) 2000 80 1750 70 1500 60 1250 50 O02 1000 750 30 500 20 250 10 0 -200-1000100200300400500600700800(C) 温度对铬锰合金力学性能的影响温度对铬锰合金力学性能的影响 2000 1750 1500 1250 1000 750 500 250 0 -200 -100 0 100 200 300 400 500 600 700 800 2000 1750 1500 1250 1000 750 500 250 0 -200 -100 0 100 200 300 400 500 600 700 800 s (MPa) ( C)   s b s 0.2 80 70 60 50 40 30 20 10 0  (%)