The fracture of the alloy is featured with dimple in tensile test both at room and high temperature, mixed mechanism fracture, existing both dimples and tear ridges, is labeled with the alloy in creep rupture.

• 氩弧焊接头室温拉伸时断裂部位在母材，为韧窝断口，高温拉伸和持久拉伸时断在焊缝或熔合区，高温拉伸时断口为贝壳状，而持久拉伸时为准解理甚至沿晶的脆性断口。