YANG Dejun ZHOU Honghui LI Huiqin University of Science and Technology Beijing
,
Beijing
,
China professor
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Department of Corrosion Engineering
,
University of Science and Technology Beijing
,
Beijing 100083
,
China
金属学报(英文版)
Effect of increasing content of Ti on the crystalline-to-amorphous transition in alloy film of stainless steel 321 plus Ti synthesized by high rate magnetron sputtering deposition is reported.X-ray diffraction analysis revealed that the microstructure of film was sequently changed from α-Fe,α-Fe-X-phase,microcrystalline+amorphous into amorphous with increasing content of Ti fiom 0—3,3—10,10—18 and 18—30 wt-% respectively.
关键词:
magnetron sputtering
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QIAO Lijie LIU Rui XIAO Jimei University of Science and Technology Beijing
,
Beijing
,
China
金属学报(英文版)
The effects of stress components on nucleation sites and propagation directions of stress cor- rosion cracks in brass were investigated with specimens under mode Ⅱ and mode Ⅲ loadings. The results indicated that under mode Ⅱ loading,stress corrosion cracks nucleated on the site with maximum normal stress component and propagated along the plane perpendieular to the maximum normal stress,under mode Ⅲ loading,the stress corrosion crack was not evident on the 45°plane due to the general corrosion in aqueous solution with high NH_4OH concentra- tion,while stress corroded in aqueous solution with low NH_4OH concentration, numerous cracks with spacings of 10—150μm were found on the 45°plane with maximum normal stress and no stress corrosion cracks was observed on the plane with maximum shear stress.
关键词:
stress corrosion cracking
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