Cu-Al-Mn合金马氏体结构及其在时效过程中的变化The Martensite Structure and its Variation During Aging in Cu-Al-Mn Alloy
李周,汪明朴,徐根应,曹玲飞,张炳力
摘要(Abstract):
利用X射线衍射、透射电镜观察等方法研究了Cu 11 9Al 2 5Mn合金的马氏体结构及其在时效过程中的变化。该合金淬火态马氏体为单斜 18R结构 (M18R) ,点阵常数为 :a =0 4 4 75nm ,b =0 5 2 2 9nm ,c=3 815nm ,β =89 6°。特点是单斜角β很大 ,已非常接近正交 18R结构 (N18R) ;马氏体内存在两种类型的面缺陷 ,一种是基面堆垛层错 ,另一种是非基面堆垛层错 ;时效时马氏体由单斜向正交转变的过程在一定程度上受到抑制 ,因而具有较高的抗马氏体稳定化的能力。
关键词(KeyWords): 形状记忆合金;CuAlMn合金;马氏体;稳定化
基金项目(Foundation): 国家自然科学基金资助 (编号 50 0 71 0 69)
作者(Author): 李周,汪明朴,徐根应,曹玲飞,张炳力
参考文献(References):
- 1 MarcosSade,FransicoCLovey.Thestructureofthemodified2HmartensiteinCuZnAl[J].ScriptaMet,1983,17:333.
- 2 李周,汪明朴,曹玲飞,徐根应等.Cu25Al3Mn合金马氏体结构及其内部缺陷[J].金属学报,2002,38(2):117.
- 3 TsugioTadaki.MasamiTokoro,Ken’ichiShimizu.ThermoelasticnatureandcrystalstructureoftheCuZnmartensiterelatedtotheshapememory[J].TransJIM ,1975,16:285.
- 4 LoveyFC ,TendelooG ,VanLanduytJ,AmelinckxS .Thehighresolutionelectronmicroscopyoftwininterfacesin2Hand18RmartensitesofCuAlalloys[J].ScriptaMet,1985,19:1223.
- 5 HiroshiKubo,Ken’ichiShimizu.CrystalstructureofCu30Au25Zn45martensite[J].TransJIM ,1976,17:330.
- 6 SaburiT ,NennoS ,KatoS ,TakataK .ConfigurationsofmartensitevariantsinCuZnGa[J].JournaloftheLessCommonMetals,1976,50:223
- 7 KuwanoN ,WaymanMC .SomeeffectsofparentphaseagingonthemartensitictransformationinaCuAlNishapememoryalloy[J].MetTransA ,1984,15A :621.
- 8 TsugioTadaki,OkazakiH ,NakataY ,ShimizuK .AtomicconfigurationstudiedbyALCHEMIandX raydiffractionofastabilizedM18RmartensiteinaβphaseCuAuZnalloy[J].MaterialsTransactionsJIM ,1990,31:941.
- 9 KainumaR ,TakahashiS ,Ishidak.ThermoelasticmartensiteandshapememoryeffectinductileCuAlMnalloys[J].MetallMaterTransA ,1996,27A :2187.
- 10 Horikawa,IchinoseS ,MoriK .Orientationdependenceofβ1→β1,stress inducedmartensitetransformationinaCuAlNialloy[J].MatallTransA ,1988,19A :915.
- 11 WANGMP ,JINZP ,YINZM .Orderstateandstabilityofmartensiteinanair quenchedCuZnAlalloy[J],TransNonferrousMetSocChina,1996,6(3):113.
- 12 WANGMP ,LIUJW .CuZnAl合金热弹性马氏体稳定化机理的探讨[J],ActaMetallSinica,1990,26(3A):220.
- 13 汪明朴,王世伟.CuZnAl合金马氏体在稳定化过程中的反常浮凸[J].中南工业大学学报,1997,28(1):53.
- 14 CHENGY ,WANGMP .StabilizationofmartensiteinCuZnAlalloyanditsreverseshapememoryeffect[J].TransNonferrousMetSocChina,1998,8
文章评论(Comment):
|
||||||||||||||||||
|
||||||||||||||||||