GH984G 标准热处理态(a, b, c)、700 °C长期时效1000 h (d, e, f)和10000 h (g, h, i)及750 °C长期时效10000 h (j, k, l)后不同磷含量合金的室温冲击断口形貌  (a, d, g, j) 0P合金，(b, e, h, k) 0.02P合金，(c, f, i, l) 0.08P合金

The impact fracture morphologies at room temperature in the 0P (a, d, g, j), 0.02P (b, e, h, k) and 0.08P (c, f, i, l) alloys after standard heat treatment (a, b, c) and thermal exposure at 700 °C for 1000 h (d, e, f) and 10000 h (g, h, i) and at 750 °C for 10000 h (j, k, l).