通过不同试验评估部分再结晶对 EN AW6082 锻造部件耐腐蚀性的影响

IF 1.6 4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-04-15 DOI:10.1002/maco.202414354
Silvia Cecchel, Marcello Gelfi, Giovanna Cornacchia
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引用次数: 0

摘要

由于铝合金锻件具有强度高、重量轻的特点,因此汽车结构件广泛采用铝合金锻件。这些产品经常会发生再结晶。再结晶通常仅限于表面或锻造部分,预计会降低其抗拉强度和耐腐蚀性,但这方面的文献很少。为了更全面地了解这一问题,本研究对从 EN AW 6082-T6 锻造部件中收集的样品的腐蚀行为进行了研究,旨在将再结晶和未再结晶的表面暴露在腐蚀环境中。采用了几种标准化腐蚀测试(即 PV 1113、ISO 11846 和 VW 96380),以评估与实际现场暴露有关的最具代表性的测试。拉伸试验在四种不同的条件下进行,即在锻造状态下或腐蚀后的再结晶和未再结晶试样。再结晶导致拉伸性能下降,但与未再结晶样品相比,较高的耐腐蚀性弥补了这一差距。因此,腐蚀试验后的机械性能变得相当。
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The effect of partial recrystallization on the corrosion resistance of EN AW6082 forged components evaluated with different tests

Structural automotive components are extensively made of aluminum alloy forgings, due to the elevate strength and low weight required. These products are frequently subjected to recrystallization. Recrystallization, often limited to surface or forging portions, is expected to reduce its tensile strength and corrosion resistance, but the literature is scarce on this subject. For a more comprehensive understanding, the present research studied the corrosion behavior of samples collected from EN AW 6082-T6 forged components, designed to expose both recrystallized and not recrystallized surfaces to the corrosive environment. Several standardized corrosion tests (i.e., PV 1113, ISO 11846, and VW 96380) were applied to assess the most representative with respect to real field exposure. Tensile tests were performed in four different conditions, recrystallized and not recrystallized specimens in an as-forged state or after corrosion. The recrystallization led to a reduction in tensile properties, but this gap was compensated by a higher corrosion resistance than the not recrystallized samples. Consequently, the mechanical properties became comparable after the corrosion test.

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来源期刊
Materials and Corrosion-werkstoffe Und Korrosion
Materials and Corrosion-werkstoffe Und Korrosion 工程技术-材料科学:综合
CiteScore
3.70
自引率
11.10%
发文量
199
审稿时长
1.4 months
期刊介绍: Materials and Corrosion is the leading European journal in its field, providing rapid and comprehensive coverage of the subject and specifically highlighting the increasing importance of corrosion research and prevention. Several sections exclusive to Materials and Corrosion bring you closer to the current events in the field of corrosion research and add to the impact this journal can make on your work.
期刊最新文献
Calendar of Events Cover Picture: Materials and Corrosion. 11/2024 Masthead: Materials and Corrosion. 11/2024 Contents: Materials and Corrosion. 11/2024 Calendar of Events
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