[1]施翔晶,馬華.不同環(huán)境下2D70鋁合金低周疲勞性能的研究[J].中國材料進(jìn)展,2012,(10):047-50.[doi:10.7502/j.issn.1674-3962.2012.10.08]
SHI Xiangjing,MA Hua.Study on Low Cycle Fatigue Performances of 2D70 Aluminum Alloy in Different Environments[J].MATERIALS CHINA,2012,(10):047-50.[doi:10.7502/j.issn.1674-3962.2012.10.08]
點(diǎn)擊復(fù)制
不同環(huán)境下2D70鋁合金低周疲勞性能的研究(
)
中國材料進(jìn)展[ISSN:1674-3962/CN:61-1473/TG]
- 卷:
-
- 期數(shù):
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2012年第10期
- 頁碼:
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047-50
- 欄目:
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研究報(bào)告
- 出版日期:
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2012-10-24
文章信息/Info
- Title:
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Study on Low Cycle Fatigue Performances of 2D70 Aluminum Alloy in Different Environments
- 作者:
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施翔晶; 馬華
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（洪都航空工業(yè)集團(tuán)，江西 南昌，330024)
- Author(s):
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SHI Xiangjing; MA Hua
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（HongDu Aviation Industry Group Corporation, Nanchang 330024, China）
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- 關(guān)鍵詞:
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低周疲勞; 濕空氣; 鹽霧; 鹽霧+SO2
- DOI:
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10.7502/j.issn.1674-3962.2012.10.08
- 文獻(xiàn)標(biāo)志碼:
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A
- 摘要:
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對2D70 Al合金在試驗(yàn)室空氣、濕空氣、鹽霧及鹽霧＋SO2 4種環(huán)境下進(jìn)行低周疲勞試驗(yàn)，對比4種環(huán)境下的循環(huán)σε曲線及應(yīng)變-壽命曲線，得出結(jié)論：相同應(yīng)變下，2D70 Al合金隨腐蝕環(huán)境增強(qiáng)，循環(huán)應(yīng)力降低；相同應(yīng)變下，2D70 Al合金在鹽霧及鹽霧+SO2 2種環(huán)境下低周疲勞壽命相近，并且隨著腐蝕環(huán)境的增強(qiáng)，低周疲勞壽命降低；腐蝕環(huán)境越強(qiáng)，材料疲勞損傷程度越大。研究結(jié)果，為預(yù)測飛機(jī)不同環(huán)境的低周疲勞壽命及對飛機(jī)腐蝕防護(hù)及耐久性設(shè)計(jì)提供參考。
- Abstract:
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Having done a series of low cycle fatigue tests to 2D70 aluminum alloy under different environments which include laboratory air, moist air , NaCl fog and NaCl fog + SO2 Compare the cyclic stress versus strain curves and the strain versus life curves in four circumstances respectively which they can be obtained by above experiments. The conclusion will be made: Under the same strain, the circulation stress of 2D70 aluminum alloy reduces along with the corrosion environment strengthens; Under the same strain, the low cycle fatigue life in NaCl fog is close to the life in NaCl fog + SO2 of 2D70 aluminum alloy , and the low fatigue life reduces along with the corrosion environment strengthens. The corrosion environment is stronger, the fatigue damage of materials is bigger. The studies provide the reference to forecast low cycle fatigue lifes of airplane under different environments, and have important meaning on corrosion protection and durable design of airplane.
更新日期/Last Update:
2012-10-25