Deren LI
,
Zhichao LU
,
Wei HAN
,
Shaoxiong ZHOU
,
Zhen GAO
,
Junfeng ZHANG
,
Hui LIU
材料科学技术（英文）
The giant stress-impedance (GSI) effect in amorphous and current annealed Fe73.5Cu1Nb3Si13.5B9 ribbons has been investigated. The results showed that the GSI effect changed drastically with annealing techniques and the maximum stress impedance ratio of 350% was obtained after optimal conditions of current annealing. The behaviors of the stress impedance vary with densities of annealing current and the stress longitudinally applied during currentannealing. The maximum change of stress impedance existed in the sample annealed by high-current-density electropulsing under applied stress of 100 MPa.
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Amorphous ribbon
,
null
,
null
,
null
,
null
Hong LU
,
Kewei GAO
,
Hui LIU
,
Lijie QIAO
,
Wuyang CHU
材料科学技术（英文）
alpha -Ti foil with a protective layer formed on one side was deflected during corrosion in a methanol solution containing 0.6 mol/L KCl and then a tensile stress was generated at or near the metal passive film interface. The in situ TEM observation showed that corrosion process could facilitate dislocation emission and motion. Adding 10% H2O into the methanol solution decreased the passive film-induced stress from 320 MPa to zero, and the susceptibility to SCC measured in slow strain rate tests decreased correspondingly from 98% to zero.
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