Environmentally assisted cracking behaviour of Al–Zn–Mg–Cu–Cr alloy bonded with polymer matrix composite stiffener
Source abstract
Abstract
Abstract Studies were conducted to investigate the effect of polymer matrix composite stiffener (patch) on environmentally assisted cracking (EAC) susceptibility of pre-cracked alclad Al–Zn–Mg–Cu–Cr alloy in 3.5 wt.% NaCl environment. The EAC threshold stress intensity of the peak and two-step aged alloy was reduced from 26 to 7 MPa m1/2 and 31to 8 MPa m1/2 respectively under the influence of patch. The plateau crack velocity was increased from 2.5 × 10−9 to 5.1 × 10−9 m/s for peak aged and 1.2 × 10−9 to 2.0 × 10−9 m/s for two-step aged tempers in patched condition. The significant increase in EAC susceptibility was attributed to crevice effect generated by the stiffener.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Aluminum Alloy Microstructure Properties · Aluminum Alloys Composites Properties · Metal Forming Simulation Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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