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《Acta Aeronautica Et Astronautica Sinica》 2007-03
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Study on Crack Growth Behaviors of Three Kinds of Aeronautical Materials at 25℃ and -40℃

ZHANG Fu-ze1, YE Xu-bin2, SONG Jun2, GUO Hong-quan2(1.Beijing Aeronautical Technology Research Center, Beijing 100076) (2.Beijing Institute of Aeronautical Materials, Beijing 100095)  
To study the crack growth behaviors of areonautical materials at low temperature and room temperature, the a-N curves and da/dN-△K curves of LY12CZ, LC4CS aluminium alloys and 30CrMnSiNi2A steel are tested at -40℃ and 25℃ separately.Through the results, it can be found that the a-N curves and the da/dN-△K curves of these materials at -40℃ are both higher than those of at 25℃. All the results show that the crack growth rates of the materials at at -40℃ are lower than those at 25℃, namely at the same condition, the crack growth lives the materails at low invironment are higher than those at room invironment.
【CateGory Index】: V250
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1 SONG Qian-guang;ZHAO Bin;GENG Xiao-liang;DENG Jun-yan;LIU Chang;School of Mechanics and Civil.& Architecture,Northwestern Polytechnical University;;Effect of Stress Ratio and Temperature on the Fatigue Crack Growth Behaviour of Aerometal and Study of the Mechanism[J];材料科学与工程学报;2015-02
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10 LIU Qi-bin1,2,BAI Li-feng1 (1 Materials School of Guizhou University,Caijiaguan Branch,Guiyang 550003,China;2 Guizhou Key Laboratory for Mechanical Behavior and Microstructure of Materials,Guiyang 550003,China);Effect of Laser Welding Technology Parameters on Microstructure and Properties of Steel 30CrMniNi2A[J];材料工程;2009-S1
【Secondary References】
Chinese Journal Full-text Database 5 Hits
1 YANG Xiao-hua;GU Zhi-yue;ZHANG Tai-Feng;Qingdao Branch of Naval Aviation University;;Determination of Calendar Life of a Certain Aircraft Structure Based on Environmental Corrosion Damage[J];装备环境工程;2018-05
2 Cao Yupeng;Chen Haotian;Feng Aixin;Zhou Rui;Hua Guoran;Jiang Suzhou;School of Mechanical Engineering,Nantong University;School of Mechanical Engineering,Jiangsu University;Nantong Institute of Materials Engineering and Technology,Nanjing University;School of Mechanical and Electrical Engineering,Wenzhou University;;Correlation Between X-Ray Diffraction Pattern and Microstructure of Laser Shock Processed 7050-T7451 Aluminum Alloy Surface[J];中国激光;2018-05
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