锻压技术

LA103Z镁锂合金锻件超声评价技术

英文标题：Ultrasonic evaluation technique of forging for magnesium-lithium alloy LA103Z

作者：史洪源邵红亮王瑞

分类号：TB302.5

出版年,卷(期):页码：2018,43(2):0-0

摘要：

针对镁锂合金锻件检测时存在超声波能量的严重衰减，导致无法实施有效的内部质量检测难题，通过对不同锻造变形量下的LA103Z镁锂合金锻件进行金相观察，分析了不同变形量对材料微观结构造成的影响；同时还分析了不同变形量对超声波衰减系数及材料纵波声速的影响，最后研究了探头晶片尺寸对超声波衰减系数的影响。结果发现，对于LA103Z镁锂合金锻件，锻造变形量越大，镁锂合金α相微观组织越细密；超声衰减系数随锻造变形量增大而减小；材料的超声波纵波声速随锻造变形量增大而增大；随着超声检测探头晶片尺寸增大，超声波衰减系数减小；相同变形量的镁铝合金材料，随着使用的探头频率的提高，材料的声波衰减系数和声速都变大。

For the difficulty of effective internal quality inspection caused by a serious attenuation of ultrasonic energy in the testing of magnesium-lithium alloy forgings, the magnesium-lithium alloy LA103Z forgings under different forging deformations were studied by metallographic observation, and the influences of different deformations on microstructure were analyzed. Then, the influences of different deformations on ultrasonic attenuation coefficient and longitudinal wave velocity of material were analyzed, and the influence of probe wafer size on ultrasonic attenuation coefficient was also studied. The results show that the greater the forging deformation of magnesium-lithium alloy LA103Z forging is, the more dense microstructure of α-phase magnesium-lithium alloy is. Furthermore, the ultrasonic attenuation coefficient decreases with the increasing of forging deformation, and the ultrasonic longitudinal wave velocity of material increases with the increasing of forging deformation. However, the ultrasonic attenuation coefficient decreases with the increasing of ultrasonic probe wafer size. Thus, with the enhancement of probe frequency, the acoustic attenuation coefficient and the sound velocity of material become larger for magnesium-lithium alloy under the same deformation.

基金项目：

西安航空职业技术学院综合科研项目（17XHZH-004）

作者简介：史洪源（1986-），男，硕士，讲师 E-mail：shy2008x@163.com

参考文献：

［1］张密林,Elkin F M. 镁锂超轻合金
［M］.北京：科学出版社，2010.

Zhang M L,Elkin F M. Magnesium Lithium Ultra-light Alloy
［M］.Beijing: Science Press,2010.

［2］仲志国,卢志文,赵亚忠.镁锂合金的研究进展
［J］.材料热处理技术,2012,41(4):76-79.

Zhong Z G,Lu Z W,Zhao Y Z.Study on research status of Mg-Li alloys
［J］.Material & Heat Treatment,2012,41(4):76-79.

［3］杨光昱,郝启堂,介万齐.镁锂系合金研究现状
［J］.铸造技术,2004,25(1):19-121.

Yang G Y,Hao Q T,Jie W Q.Study status of Mg-Li system alloys
［J］.Foundry Technology,2004,25(1):19-121.

［4］潘洪平,丁志勇,谢水生，等.镁合金加工技术的研究现状与应用
［J］.轻合金加工技术,2002,（7）:7-10.

Pan H P,Ding Z Y,Xie S S,et al.The study and application of processing technology of magnesium alloys
［J］.Light Alloy Fabrication Technology,2002,(7):7-10.

［5］刘祚时,谢旭红.镁合金在汽车工业中的开发与应用
［J］.轻金属,1999,(1):55-58.

Liu Z S,Xie X H.Development and application of magnesium alloys in automobile industry
［J］.Light Metals,1999,(1):55-58.

［6］李劲风,郑子樵,陶光勇.超轻Mg-Li合金
［J］.轻合金加工技术,2004,32(10):35-38.

Li J F,Zheng Z Q,Tao G Y.Review on super light Mg-Li alloy
［J］.Light Alloy Fabrication Technology,2004,32(10):35-38.

［7］乐启炽,崔建忠.Mg-Li合金的过去、现在与将来
［J］.宇航材料工艺,1997,（2）:1-6.

Yue Q Z,Cui J Z.Mg-Li alloys in the past, present and future
［J］.Aerospace Materials & Technology,1997,（2）:1-6.

［8］王军武,刘旭贺,王飞超,等.航空航天用高性能超轻镁锂合金
［J］.军民两用技术与产品,2013,（6）:21-24.

Wang J W,Liu X H,Wang F C,et al.High performance ultra-light magnesium-lithium alloy for aerospace
［J］.Dual Use Technologies & Products,2013,(6):21-24.

［9］王涛,张密林,牛中毅.Y对Mg-8Li-3Al合金组织和性能的影响
［J］.轻合金加工技术,2007,35(10):35-37.

Wang T,Zhang M L,Niu Z Y.Effect of yttrium on microstructure and mechanical properties of Mg-8Li-3Al alloy
［J］.Light Alloy Fabrication Technology,2007,35(10):35-37.

［10］秦径为，彭谦之，周海涛，等，Mg-8Li-3Al-Y镁锂合金板材热轧及退火组织与性能
［J］.稀有金属，2015,39(7):577-582.

Qin J W,Peng Q Z,Zhou H T,et al.Microstructure and mechanical properties of hot-rolled and annealed Mg-8Li-3Al-Y alloys
［J］.Chinese Journal of Rare Metals,2015,39(7):577-582.

［11］周志明，刘兵，罗天星，等.汽车空心半轴的精锻工艺及显微组织研究
［J］. 锻压技术，2016，41（3）：9-12.

Zhou Z M，Liu B，Luo T X，et al. Research on precision forging process and microstructure of automobile hollow semi-axle
［J］. Forging & Stamping Technology，2016，41（3）：9-12.

［12］陈建忠,史耀武.低碳钢晶粒尺寸的超声无损评价技术
［J］.无损检测,2002,24(9):391-394.

Chen J Z,Shi Y W.Ultrasonic nondestructive evaluation of the grain size of low carbon steel
［J］.Nondestructive Testing,2002,24(9):391-394.

［13］徐彦霖,王增勇,黄振翅.奥氏体不锈钢平均晶粒尺寸的超声评价技术
［J］.无损检测, 2001, 23(6): 246-248.

Xu Y L,Wang Z Y,Huang Z C.Ultrasonic evaluation of the average grain size of austenitic stainless steel
［J］.Nondestructive Testing,2001, 23(6): 246-248.

［14］尹昌,刘晓宙,龚秀芬,等.钢材料中声速与声衰减系数的测量
［J］.声学技术,2007,26(5):974-975.

Yin C,Liu X Z,Gong X F,et al. The measurement of velocity and attenuation coefficient of steel
［J］.Technical Acoustics,2007,26(5):974-975.

［15］马世伟,袁康.SUS306不锈钢平均晶粒尺寸的超声无损检测及其评价
［J］.上海大学学报:自然科学版,2010,16(2):125-130.

Ma S W,Yuan K.Nondestructive ultrasound test and evaluation of average grain diameter in SUS306 stainless steel
［J］.Journal of Shanghai University:Natural Science Edition,2010,16(2):125-130.

［16］马越，刘建生.30Cr2Ni4MoV钢动态再结晶及微观组织演变研究
［J］. 锻压技术，2016，41（3）：129-133.

Ma Y，Liu J S. Research on dynamic recrystallization behavior and microstructure evolution of steel 30Cr2Ni4MoV
［J］. Forging & Stamping Technology，2016，41（3）：129-133.

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