COMPARISON OF CORROSION-FATIGUE PROPERTIES OF PRECORRODED 6013-BARE AND 2024-BARE ALUMINUM-ALLOY SHEET MATERIALS

被引：16

作者：

CHAUDHURI, J ^{[1
]}

TAN, YM ^{[1
]}

GONDHALEKAR, V ^{[1
]}

PATNI, KM ^{[1
]}

机构：

[1] CESSNA AIRCRAFT CO,DIV MAT & PROC,WICHITA,KS 67277

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 1994年 / 3卷 / 03期

关键词：

ALUMINUM ALLOYS; CORROSION-FATIGUE; 2024 ALUMINUM ALLOY; 6013 ALUMINUM ALLOY;

D O I：

10.1007/BF02645334

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The corrosion-fatigue resistance of precorroded 6013 bare and 2024 bare aluminum alloy sheet materials was evaluated to compare the effect of corrosion on initiation and propagation of fatigue cracks. The specimens were precorroded in 3.5% NaCl water solution per ASTM G 44 for periods of 4 and 30 days, and then were subjected to cyclic testing to failure in a 3.5% NaCl corrosive environment. The notched 6013 specimens showed better corrosion-fatigue resistance for the longer exposure time only. In all other cases, the 2024 material had better resistance. Fractographic and microstructural examinations suggested that the lower corrosion-fatigue life of the 6013 alloy is due to intergranular corrosion. Although the surface corrosion (pitting) on the 2024 alloy appeared severe, there was little evidence of intergranular corrosion in this alloy.

引用

页码：371 / 377

页数：7

共 7 条

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CHAUDHURI, J ;

TAN, YM ;

PATNI, K ;

EFTEKHARI, A .

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