杨平希,宋文明,杨贵荣,李健,马颖,郝远

• 1:兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室
• 2:甘肃蓝科高新石化装备股份有限公司
• 3:武汉材料保护研究所

摘要(Abstract)：

对3A21铝合金进行不同热暴露温度、保温时间和冷却速率的热处理来模拟火灾发生时的受火过程,并对其力学性能与微观组织进行评定。结果表明:当受火温度低于510℃时,冷却方式对冲击韧性影响较大,冲击吸收功在204℃空冷条件下升高65%,427℃水冷条件下升高57%;受火温度低于510℃时力学性能随受火温度升高略有降低,受火温度达到657℃时,力学性能降低29%~47%;冲击及拉伸断口中均出现韧窝尺寸大小差异增大,韧窝内出现颗粒相,随受火温度升高其微观组织由初始的细小均匀的带状织构组织逐渐粗化、弱化直至消失、再结晶、硬质相的析出、部分溶解与在晶界处再析出。

关键词(KeyWords)： 3A21铝合金;受火模拟处理;冲击韧性;力学性能;微观组织

Abstract:

Keywords:

基金项目(Foundation): 科技部质检公益专项(201410128-04)

作者(Author): 杨平希,宋文明,杨贵荣,李健,马颖,郝远

DOI: 10.13289/j.issn.1009-6264.2016.11.006

参考文献(References)：

• [1]李广钦,左秀荣,宋天福,等.变形铝锰系合金的应用现状及发展动态[J].热加工工艺,2006,35(10):63-67.LI Guang-qin,ZUO Xiu-rong,SONG Tian-fu,et al.Application situation and progress of wrought Al-Mn alloy[J].Hot Working Technology,2006,35(10):63-67.
• [2]潘复生,张丁非等编著.铝合金及应用[M].北京:化学工业出版社,2006.
• [3]邢志祥,蒋军成.16MnR钢在高温(火灾)下的力学性能试验研究[J].石油机械,2004,32(2):5-6.XING Zhi-xiang,JIANG Jun-cheng.Experimental research of mechanical properties of 16MnR steel at hightemperature[J].China Petroleum Machinery,2004,32(2):5-6.
• [4]张辉,邹红.火灾温度与Q235钢晶粒度和硬度关系的研究[J].理化检验(物理分册),2001,37(9):384-386.ZHANG Hui,ZOU Hong.Study of the relationship between grain size and hardness of Q235 steel and fire temperature.[J].Physical Testing and Chemical Analysis Parta Physical Testing,2001,37(9):384-386.
• [5]丁发兴,余志武,温海林.高温后Q235钢材力学性能试验研究[J].建筑材料学报,2006,9(2):245-249DING Fa-xing,YU Zhi-wu,WEN Hai-lin.Experimental research on mechanical properties of Q235 steel after high temperature treatment[J].Journal of Building Materials,2006,9(2):245-249.
• [6]ASME Case of ASME boiler and pressure vessel code,section III-class I components in elevated temperature service[S].Code Case N47-29.New York:ASME,1990.
• [7]British Standards BS 7910:1999,Guide to methods of assessing the accep tability of flaws in fusion welded structures[S].London;BSI,1999.
• [8]CHEN Xuedong,AI Zhibin,FAN Zhichao,et al.Integrity assessment of pressure vessels and pipelines under fire accident environment[C]/ASME2012 Pressure Vessels and Piping Conference,Toronto,Ontario,Canada,July 15-19,2012.
• [9]杨景标,陈学东,范志超,等.07Mn Ni Mo DR钢火灾后力学性能及组织研究(一)—硬度及显微组织[J].压力容器,2014(2):1-8.YANG Jing-biao,CHEN Xue-dong,FAN Zhi-chao,et al.Research on mechanical properties and microscopic structures for 07Mn Ni Mo DR steel after fire damage(1)——hardness and metallographic structure[J].Pressure Vessel Technology,2014(2):1-8.
• [10]API 579-1 ASME FFS-1-2007 Fitness-for-Service-Second Edition[S].Washington,DC:American Petroleum Institute,2007.
• [11]钟群鹏,赵子华编著.断口学[M].北京:高等教育出版社,2006.
• [12]蔡元华,郝斌,杨滨,等.锰增韧高强铝合金的制备及微观组织[J].材料热处理学报,2006,27(4):69-72.CAI Yuan-hua,HAO Bin,YANG Bin,et al.Fabrication and microstructure of high strength Al-Zn-Mg-Cu alloy toughened with manganese[J].Transactions of Materials and Heat Treatment,2006,27(4):69-72.
• [13]冉广,周敬恩,王永芳.等A356铝合金的拉伸性能及其断口分析[J].稀有金属材料与工程,2006,35(10):1620-1624.RAN Guang,ZHOU Jing-en,WANG Yong-fang,et al.Study on tensile properties and fractography of cast A356 aluminum alloy[J].Rare Metal Materials and Engineering,2006,35(10):1620-1624.
• [14]Alexander D T L,Greer A L.Solid-state intermetallic phase tranformations in 3XXX aluminium alloys[J].Acta Materialia,2002,50(10):2571-2583.
• [15]Dehmas M,Weisbecker P,Geandier G,et.al.Experimental study of phase transformations in 3003 aluminium alloys during heating by in situ high energy X-ray synchrotron radiation[J].Journal of Alloys and Compounds,2005,400(1/2):116-124.
• [16]Dehmas M,Aeby-Gautier E,Archambault P,et al.Interaction between eutectic intermetallic particles and dispersoids in the 3003 aluminum alloy during homogenization treatments[J].Metallurgical&Materials Transactions A,2013,44(2):1059-1073.
• [17]汪祥鹏.热处理工艺对变形铝合金板材组织与性能的影响[D].合肥:合肥工业大学,2010.WANG Xiang-peng.Influence of heat treatment process on the microstructure and properties of deforming aluminum slloy sheet[D].He Fei:He Fei University of Technology,2010.
• [18]李广钦,左秀荣.铸态及均匀化处理3003铝锰合金的组织和性能[J].材料热处理学报,2007,28(3):63-66.LI Guang-qin,ZUO Xiu-rong.Research on microstructure and mechanical properties of as-cast and homogenized 3003 aluminium-manganese alloy[J].Transactions of Materials and Heat Treatment,2007,28(3):63-66.

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