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4. 标准热处理态不同Hf含量FGH97合金中g’ 相形貌的SEM像
Fig.4. SEM images of g’ precipitates in standard heat treated FGH97 alloys with Hf contents of 0 (a), 0.16% (b), 0.30% (c), 0.58% (d) and 0.89% (e) (Arrows in Figs.4c and d indicate the caves in the center of edge along <100> of g’ phase before g’ split)
