The corrosion behaviors and mechanism of 1420 Al-Li alloy

Journal Article · Fri Mar 01 00:00:00 EST 1996 · Scripta Materialia

DOI:https://doi.org/10.1016/1359-6462(95)00603-6· OSTI ID:215350

Yusheng, Cui; Ziyong, Zhu; Sue, Liu; Wei, Ke; Yun, Zhang; Wanming, Zhang ^[1]

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1. Academia Sinica, Shenyang (China)

Aluminum-lithium alloys are attractive materials for aircraft components and aerospace applications due to their reduced density and increased stiffness as compared with conventional aluminum alloys. Although many behaviors of Al-Li alloys have been and are being studied, it is necessary to understand their stress corrosion cracking (SCC) characteristics and mechanism because of the high SCC susceptibility of other high-strength aluminum alloys. The purpose of the investigation is to look for the best combination of strength, ductility, and SCC resistance and to understand the mechanism of SCC for Al-Li alloys. In the present paper the SCC behavior of 1420 Al-Li has been studied. The intermetallic compounds in the alloy were synthesized for investigating their electrochemical behaviors.

• OSTI ID: 215350
• Journal Information: Scripta Materialia, Vol. 34, Issue 5; Other Information: PBD: 1 Mar 1996
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
33 ADVANCED PROPULSION SYSTEMS
ALUMINIUM BASE ALLOYS
STRESS CORROSION
FRACTURE PROPERTIES
LITHIUM ALLOYS
MAGNESIUM ALLOYS
AEROSPACE INDUSTRY
MATERIALS
ZIRCONIUM ADDITIONS
IRON ADDITIONS
SAMPLE PREPARATION
CHEMICAL COMPOSITION
HEAT TREATMENTS
DISSOLUTION
PRECIPITATION
GRAIN BOUNDARIES
INTERMETALLIC COMPOUNDS
HYDROGEN EMBRITTLEMENT