publication . Article . 2016

The Effect of Creep Aging on the Fatigue Fracture Behavior of 2524 Aluminum Alloy

Wenke Li; Lihua Zhan; Lingfeng Liu; Yongqian Xu;
Open Access
  • Published: 07 Sep 2016 Journal: Metals, volume 6, page 215 (eissn: 2075-4701, Copyright policy)
  • Publisher: MDPI AG
Abstract
Normal temperature tensile and fatigue tests were adopted to test the mechanical performance and fatigue life of 2524 aluminum alloy under the three states of T3, artificial aging, and creep aging, and scanning electron microscope and transmission electron microscope were also used to observe the fatigue fracture morphology and aging precipitation features of the alloy under the above three states. Results showed that the alloy treated by creep aging can obtain higher fatigue life, but that treated by artificial aging is lower than T3; T3 alloy is mainly dominated by GPB region. Meanwhile, the crystal boundary displays continuously distributed fine precipitated ...
Subjects
Medical Subject Headings: technology, industry, and agricultureequipment and supplies
free text keywords: 2524 aluminum alloy, creep aging, fatigue fracture behavior, aging precipitation, Mining engineering. Metallurgy, TN1-997
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