镍基粉末高温合金中微量元素Hf的作用*
张义文1,2(
),胡本芙3
),胡本芙3
FUNCTION OF MICROELEMENT Hf IN POWDER METALLURGY NICKEL-BASED SUPERALLOYS
Yiwen ZHANG1,2(),Benfu HU3
),Benfu HU3
图11. 标准热处理态不同Hf含量的FGH97合金在650 ℃的疲劳裂纹扩展速率
Fig.11. Fatigue crack propagation rate (da/dN) of standard heat treated FGH97 alloy at 650 ℃ with different Hf contents (DK—stress intensity factor range)
