·210· 工程科学学报，第37卷，第2期 置，容易产生裂纹，在Mg1.5Zn0.9Ce合金中产生了 in high strength wrought magnesium alloys.Scripta Metall Mater, 较大的第二相粒子，虽然其(0002)极图的最大强度仅 1994,31(2):111 为3.4，但在杯突实验中其埃里克森杯突值只能达到 [8]Sanjari M,Farzadfar S F,Sakai T,et al.Microstructure and tex- ture evolution of Mg3Zn3Ce magnesium alloys sheets and associat- 3.84. ed restoration mechanisms during annealing.Mater Sci Eng A, 3结论 2013,561:191 ]Lu CJ.Sudy on Rolling Process and Properties of AZ31 Magnesi- 研究了变形Mg一l.5Zn一xCe合金的织构及室温成 um Alloy Sheet with Fine Grain DDissertation ]Beijing:Universi- 形性能.结果表明：在Mg-1.5Zn合金中添加0.2%的 ty of Science and Technology Beijing,2012 (陆春洁.细品AZ31镁合金板材的轧制工艺及性能研究[学 Ce元素后，可以有效降低合金的基面织构强度，使c 位论文].北京：北京科技大学，2012) 轴由法向向横向偏移，提高了合金的室温成形性能：然 [10]Akhtar A,Teghtsoonian E.Solid solution strengthening of mag- 而，当在Mg-1.5Zm合金中添加过量的Ce会使织构强 nesium single crystals:I.Alloying behaviour in basal slip.Acta 度增强，生成粗大的MgZnCe第二相粒子，导致合金的 Metall,1969,17(11):1339 室温成形性能变差 [11]Chino Y,Kado M,Mabuchi M.Compressive deformation behav- ior at room temperature-773 K in Mg-0.2 mass%(0.035at.% Ce alloy.Acta Mater,2008,56(3):387 参考文献 [12] Stanford N,Barnett M R.The origin of "rare earth"texture de- [1]Li Y D,Chen T J,Ma Y,et al.Effect of rare earth 0.5%addi- velopment in extruded Mg-based alloys and its effect on tensile tion on semi-solid microstructural evolution of AZ91D alloy.Chin ductility.Mater Sci Eng A,2008,496 (12):399 JNonferrous Met,2007,17(2)320 [13]Chino Y,Huang X S,Suzuki K,et al.Influence of Zn concen- ]Yoshinaga H,Horiuchi R.Deformation mechanisms in magnesium tration on stretch formability at room temperature of Mg-Zn-Ce single crystals compressed in the direction parallel to hexagonal ax- alloy.Mater Sci Eng A,2010,528(2)566 is.Trans JIM,1963,4(1):1 [14]Huang X S,Suzuki K,Watazu A,et al.Improvement of form- 3]Mukai T,Yamanoi M,Watanabe H,et al.Ductility enhancement ability of Mg-Al-Zn alloy sheet at low temperatures using differ- in A231 magnesium alloy by controlling its grain structure.Scripta ential speed rolling.J Alloys Compd,2009,470(12):263 Mater,2001,45(1):89 [15]Chino Y,Sassa K.Kamiva A,et al.Influence of rolling routes 4]Chino Y,Kado M,Mabuchi M.Enhancement of tensile ductility on press formability of a rolled A731 Mg alloy sheet.Mater and stretch formability of magnesium by addition of 0.2 wt% Trans,2006,47(10):2555 (0.035at%)Ce.Mater Sci Eng A,2008,494(12):343 [16]Chino Y,Mabuchi M.Enhanced stretch formability of Mg-Al- [5]Wu D.Chen R S,Han E H.Excellent room-emperature ductility Zn alloy sheets rolled at high temperature (723 K).Scripta Ma- and formability of rolled Mg-Gd-Zn alloy sheets.J Alloys Compd, ter,2009,60(6):447 2011,509(6):2856 07] Yan H.Chen R S,Han E H.Room-temperature ductility and [6]Yan H,Chen R S,Han E H.A comparative study of texture and anisotropy of two rolled Mg-Zn-Gd alloys.Mater Sci Eng A, ductility of Mg-1.2Zn-0.8Gd alloy fabricated by rolling and e- 2010,527(15):3317 qual channel angular extrusion.Mater Charact,2011,62(3): [18]Chino Y,Sassa K.Mabuchib M.Texture and stretch formability 321 of a rolled Mg-Zn alloy containing dilute content of Y.Mater Sci 7]Ball E A,Prangnell P B.Tensile-compressive yield asymmetries EngA,2009,513514:394工程科学学报，第 37 卷，第 2 期 置，容易产生裂纹，在 Mg--1. 5Zn--0. 9Ce 合金中产生了 较大的第二相粒子，虽然其( 0002) 极图的最大强度仅 为 3. 4，但在杯突实验中其埃里克森杯突值只能达到 3. 84． 3 结论 研究了变形 Mg--1. 5Zn--xCe 合金的织构及室温成 形性能． 结果表明: 在 Mg--1. 5Zn 合金中添加 0. 2% 的 Ce 元素后，可以有效降低合金的基面织构强度，使 c 轴由法向向横向偏移，提高了合金的室温成形性能; 然 而，当在 Mg--1. 5Zn 合金中添加过量的 Ce 会使织构强 度增强，生成粗大的 MgZnCe 第二相粒子，导致合金的 室温成形性能变差． 参 考 文 献 ［1］ Li Y D，Chen T J，Ma Y，et al． Effect of rare earth 0. 5% addi￾tion on semi-solid microstructural evolution of AZ91D alloy． Chin J Nonferrous Met，2007，17( 2) : 320 ［2］ Yoshinaga H，Horiuchi Ｒ． Deformation mechanisms in magnesium single crystals compressed in the direction parallel to hexagonal ax￾is． Trans JIM，1963，4( 1) : 1 ［3］ Mukai T，Yamanoi M，Watanabe H，et al． Ductility enhancement in AZ31 magnesium alloy by controlling its grain structure． Scripta Mater，2001，45( 1) : 89 ［4］ Chino Y，Kado M，Mabuchi M． Enhancement of tensile ductility and stretch formability of magnesium by addition of 0. 2 wt% ( 0. 035 at% ) Ce． Mater Sci Eng A，2008，494( 1-2) : 343 ［5］ Wu D，Chen Ｒ S，Han E H． Excellent room-temperature ductility and formability of rolled Mg--Gd--Zn alloy sheets． J Alloys Compd， 2011，509( 6) : 2856 ［6］ Yan H，Chen Ｒ S，Han E H． A comparative study of texture and ductility of Mg--1. 2Zn--0. 8Gd alloy fabricated by rolling and e￾qual channel angular extrusion． Mater Charact，2011，62 ( 3 ) : 321 ［7］ Ball E A，Prangnell P B． Tensile-compressive yield asymmetries in high strength wrought magnesium alloys． Scripta Metall Mater， 1994，31( 2) : 111 ［8］ Sanjari M，Farzadfar S F，Sakai T，et al． Microstructure and tex￾ture evolution of Mg3Zn3Ce magnesium alloys sheets and associat￾ed restoration mechanisms during annealing． Mater Sci Eng A， 2013，561: 191 ［9］ Lu C J． Study on Ｒolling Process and Properties of AZ31 Magnesi￾um Alloy Sheet with Fine Grain［Dissertation〗． Beijing: Universi￾ty of Science and Technology Beijing，2012 ( 陆春洁． 细晶 AZ31 镁合金板材的轧制工艺及性能研究［学 位论文］． 北京: 北京科技大学，2012) ［10］ Akhtar A，Teghtsoonian E． Solid solution strengthening of mag￾nesium single crystals: I． Alloying behaviour in basal slip． Acta Metall，1969，17( 11) : 1339 ［11］ Chino Y，Kado M，Mabuchi M． Compressive deformation behav￾ior at room temperature--773 K in Mg--0. 2 mass% ( 0. 035at． % ) Ce alloy． Acta Mater，2008，56( 3) : 387 ［12］ Stanford N，Barnett M Ｒ． The origin of“rare earth”texture de￾velopment in extruded Mg-based alloys and its effect on tensile ductility． Mater Sci Eng A，2008，496 ( 1-2) : 399 ［13］ Chino Y，Huang X S，Suzuki K，et al． Influence of Zn concen￾tration on stretch formability at room temperature of Mg--Zn--Ce alloy． Mater Sci Eng A，2010，528( 2) : 566 ［14］ Huang X S，Suzuki K，Watazu A，et al． Improvement of form￾ability of Mg--Al--Zn alloy sheet at low temperatures using differ￾ential speed rolling． J Alloys Compd，2009，470( 1-2) : 263 ［15］ Chino Y，Sassa K，Kamiya A，et al． Influence of rolling routes on press formability of a rolled AZ31 Mg alloy sheet． Mater Trans，2006，47( 10) : 2555 ［16］ Chino Y，Mabuchi M． Enhanced stretch formability of Mg--Al-- Zn alloy sheets rolled at high temperature ( 723 K) ． Scripta Ma￾ter，2009，60( 6) : 447 ［17］ Yan H，Chen Ｒ S，Han E H． Ｒoom-temperature ductility and anisotropy of two rolled Mg--Zn--Gd alloys． Mater Sci Eng A， 2010，527( 15) : 3317 ［18］ Chino Y，Sassa K，Mabuchib M． Texture and stretch formability of a rolled Mg--Zn alloy containing dilute content of Y． Mater Sci Eng A，2009，513-514: 394 · 012 ·