摘要
ＴｉＡｌ镀Ｎｉ－Ｐ后可避免阴极腐蚀．氢化物饱和的试样平面应力断裂韧性ＫＣ（Ｈ）比空气中的ＫＣ值低约２０％．含饱和氢化物试样动态充氢时能发生滞后断裂，这是原子氢引起的．氢致滞后断裂门槛值ＫＩＨ和ＫＣ（Ｈ）的比值约为０．７．
A Ni-P plated TiAl alloy specimen may protect the cathodic corrosion. The fracture toughness of TiAl alloy specimen saturated with hydride, KC(H), is less than that in air, Kc . Atomic hydrogen could induce the delayed failure of the specimen saturated hydride during dynamically charging with hydrogen. The ratio, KIH/ KC (H), of the critical stress intensity for hydrogen induced delayed failure is about 0.7.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1996年第1期29-32,共4页
Acta Metallurgica Sinica
基金
国家自然科学基金
