N36锆合金管材的织构研究
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摘要
利用X射线衍射测试技术,对N36锆合金成品管材的织构进行了测量。利用极图、织构取向因子,特别是采用三维晶体学取向分布函数等表征手段,系统分析了N36锆合金成品管材的织构特征。研究结果表明,N36锆合金成品管材的主要织构组分为基面型(0002)<1120>;管材径向上织构取向因子最大,大多数晶粒的[0002]基极集中在与管材的轴向垂直的ND-TD面上,并且偏离径向30°左右呈现典型双峰分布;除基面类型织构组分外,N36锆合金管材还存在一些相对强度比(0002)基面类型织构更高的锥面类型织构,而柱面类型织构较弱。
The macro textures of N36 zirconium alloy tube were measured by means of X-ray diffraction. Pole figures,Kearn factors and the crystallite orientation distribution function( ODF) were used to analyze the texture characteristics. The results show that the main type of texture component of N36 zirconium alloy tube is basal( 0002) < 1120 >.Crystal orientations [0002] of grains of basal textures locate at ND-TD plane and be about 30° away from RD direction,with a bimodal distribution characteristic in ND-TD plane. Kearn factors are maximum value in RD direction.There are various pyramidal texture components except for basal texture,but the prismatic texture characteristic is very weak.
The macro textures of N36 zirconium alloy tube were measured by means of X-ray diffraction. Pole figures,Kearn factors and the crystallite orientation distribution function( ODF) were used to analyze the texture characteristics. The results show that the main type of texture component of N36 zirconium alloy tube is basal( 0002) < 1120 >.Crystal orientations [0002] of grains of basal textures locate at ND-TD plane and be about 30° away from RD direction,with a bimodal distribution characteristic in ND-TD plane. Kearn factors are maximum value in RD direction.There are various pyramidal texture components except for basal texture,but the prismatic texture characteristic is very weak.
引文
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[10]赵文金,周邦新,苗志,等.我国高性能锆合金的发展[J].原子能科学技术,2005,39(增刊1):2-9.
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[12]梁志德.现代织构分析的进展[J].金属学报,1997,33(2):133-142.
[2]Tenckhoff E.Operable Deformation systems and mechanical behavior of textured zircaloy tubing:Zirconium in Nuclear Industry,ASTM STP 551[C].Philadelphia:American Society for Testing and Materials,1974.
[3]Daniel R C.In-pile dimensional changes of zircaloy-4 tubing having low hoop stresses[J].Nuclear Technology,1972,14:171.
[4]Charit I,Murty K L.Texture and creep anisotropy in zirconium alloys[J].Materials Science Forum,2007,539-543:3377-3382.
[5]Cox B.Environmentally-induced cracking of zirconium alloys-A review[J].Journal of Nuclear Materials,1990,170(1):1-23.
[6]扎依莫夫斯基A C.核动力用锆合金[M].姚敏智,译.北京:原子能出版社,1988.
[7]Causey A R,Woo C H,Holt R A.The effect of intergranular stresses on the texture dependence of irradiation growth in zirconium alloys[J].Journal of Nuclear Materials,1988,159:225.
[8]渠静雯,周军,石明华,等.退火态及马氏体态M5锆合金管轴向拉伸性能研究[J].钛工业进展,2015,32(5):23-26.
[9]丘利,胡玉和.X射线衍射技术及设备[M].北京:冶金工业出版社,2001:188-232.
[10]赵文金,周邦新,苗志,等.我国高性能锆合金的发展[J].原子能科学技术,2005,39(增刊1):2-9.
[11]Kearns J J.Thermal expansion and preferred orientation in zircaloy:WAPD-TM-472[R].United States:Properties&Structure,1965.
[12]梁志德.现代织构分析的进展[J].金属学报,1997,33(2):133-142.