金属学报  2005, Vol. 41 Issue (11): 1199-1206

论文 本期目录 | 过刊浏览 |

热处理对AZ80镁合金结构及性能的影响

唐 伟; 韩恩厚; 徐永波;刘 路

中国科学院金属研究所材料环境腐蚀中心

Effect of heat treatment on microstructure and properties of AZ80 magnesium alloy

TANG Wei; HAN Enhou; XU Yongbo; LIU Lu

Environmental Corrosion Center; Institute of Metal Research; The Chinese Academy of Sciences

唐伟; 韩恩厚; 徐永波; 刘路 . 热处理对AZ80镁合金结构及性能的影响[J]. 金属学报, 2005, 41(11): 1199-1206 .
, , , . Effect of heat treatment on microstructure and properties of AZ80 magnesium alloy[J]. Acta Metall Sin, 2005, 41(11): 1199-1206 .

摘要 参考文献 相关文章 Metrics 全文: PDF(849 KB)   摘要: 利用环境扫描电镜(ESEM)和透射电镜(TEM)研究了时效温度对AZ80镁合金析出相的影响, 测定了析出相/基体的位向关系, 分析了不同析出相的析出机理及其对合金性能的影响.实验中观察到β-Mg17Al12析出相的一种新的析出方式---颗粒状β相沿晶界及孪晶处形核、生长. AZ80镁合金高温(310℃)时效时, 析出相为连续析出, 呈菱形片状或颗粒状. 其中前者在晶内均匀形核生长,与基体的基面平行, 对合金性能有一定强化作用; 而后者分布于晶界, 它的出现大大降低了合金性能. 时效温度降低(<250℃),将出现不连续析出相, 呈片层状, 其片层与基体基面平行或垂直, 在晶界形核并向晶内生长,随着不连续析出相的生长, 将推动晶界向前移动, 不连续析出相对合金的性能强化效果较大. 关键词 ： AZ80变形镁合金,  时效,  强度,  微观结构     Abstract：The effect of aging temperature on precipitates in AZ80 magnesium alloy was studied by using environmental scanning electron microscope (ESEM) and transmission electron microscope (TEM). The precipitate/matrix orientation relationships (ORs) were measured, the precipitation mechanism was analyzed and the effect of precipitates on properties of alloy was tested. A new precipitated way of granular β-Mg17Al12 phase was found in aged alloy, which was granular and nucleated at grain boundaries (GBs) and twin boundaries. Plate-like or graunlar-like β-Mg17Al12 precipitated continuously in the alloy aged at higher temperature (310℃). The plates were parallel to the basal plane of matrix, nucleated and grew homogeneously in grains, and had little effect on properties of alloy. Whereas the granular β-phase was harmful for the alloy property. The discontinuous precipitation of β-phase occurred at lower aged temperature (<250℃), which was lamellar structure parallel or perpendicular to the basal plane of matrix, nucleated at grain boundaries and grew into grains. The grain boundaries moved into the grains with the growth of these discontinuous precipitates. The alloy was strengthened by the discontinuous precipitates evidently. Key words： AZ80 wrought magnesium alloy    aging    strength    microstructure 收稿日期: 2005-06-30      ZTFLH:  TG146   服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 唐伟 韩恩厚 徐永波 刘路 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y2005/V41/I11/1199 [1] Kojima Y, Aizawa T. Mater Sci Forum, 2003: 419-422: 3 [2] Schumann S, Friedrich H. Mater Sci Forum, 2003; 419- 422: 51 [3] Clark J B. Acta Metall, 1968; 16: 141 [4] Crawley A F, Milliken K S. Acta Metall, 1974; 22: 557 [5] Clawley A F, Lagowski B. Metall Trans, 1974; 5: 949 [6] Xiao X L, Luo C P, Nie J F, Muddle B C. Acta Metall Sin, 2001; 37:1 (肖晓玲,罗承萍．聂建峰,Muddle B C．金属学报,2001; 37:1) [7] Luo C P, Xiao X L, Liu J W, Nie J F, Muddle B C. Acta Metall Sin, 2002; 38: 709 (罗承萍,肖晓玲,刘江文,聂建峰,Muddle B C．金属学报, 2002;38:709) [8] Duly D, Zhang W Z, Audier M. Philos Mag, 1995; 71A: 187 [9] Celotto S. Acta Mater, 2000; 48: 1775 [10] Duly D, Cheynet M C, Brechet Y. Acta Metall Mater, 1994; 42: 3843 [11] Duly D, Cheynet M C, Brechet Y. Acta Metall Mater, 1994; 42: 3855 [12] Duly D, Brechet Y. Acta Metall Mater, 1994; 42: 3035 [13] Duly D, Brechet Y. Acta Metall Mater, 1992; 40: 2289 [14] Hillert M. Acta Metall, 1982; 30: 1689 [15] Duly D, Simon J P. Acta Metall Mater, 1995; 43: 101 [16] Na Y G, Yim C D. Mater Sci Forum, 2003; 419-422: 285 [17] Dahmen O. Acta Metall, 1982; 30: 63 [1] 张雷雷, 陈晶阳, 汤鑫, 肖程波, 张明军, 杨卿. K439B铸造高温合金800℃长期时效组织与性能演变[J]. 金属学报, 2023, 59(9): 1253-1264. [2] 梁凯, 姚志浩, 谢锡善, 姚凯俊, 董建新. 新型耐热合金SP2215组织与性能的关联性[J]. 金属学报, 2023, 59(6): 797-811. [3] 张德印, 郝旭, 贾宝瑞, 吴昊阳, 秦明礼, 曲选辉. Y2O3 含量对燃烧合成Fe-Y2O3 纳米复合粉末性能的影响[J]. 金属学报, 2023, 59(6): 757-766. [4] 刘满平, 薛周磊, 彭振, 陈昱林, 丁立鹏, 贾志宏. 后时效对超细晶6061铝合金微观结构与力学性能的影响[J]. 金属学报, 2023, 59(5): 657-667. [5] 王滨, 牛梦超, 王威, 姜涛, 栾军华, 杨柯. 含Cu马氏体时效不锈钢的组织与强韧性[J]. 金属学报, 2023, 59(5): 636-646. [6] 王长胜, 付华栋, 张洪涛, 谢建新. 冷轧变形对高性能Cu-Ni-Si合金组织性能与析出行为的影响[J]. 金属学报, 2023, 59(5): 585-598. [7] 张哲峰, 李克强, 蔡拓, 李鹏, 张振军, 刘睿, 杨金波, 张鹏. 层错能对面心立方金属形变机制与力学性能的影响[J]. 金属学报, 2023, 59(4): 467-477. [8] 马国楠, 朱士泽, 王东, 肖伯律, 马宗义. SiC颗粒增强Al-Zn-Mg-Cu复合材料的时效行为和力学性能[J]. 金属学报, 2023, 59(12): 1655-1664. [9] 张开元, 董文超, 赵栋, 李世键, 陆善平. 固态相变对Fe-Co-Ni超高强度钢长臂梁构件焊接-淬火过程应力和变形的影响[J]. 金属学报, 2023, 59(12): 1633-1643. [10] 巩向鹏, 伍翠兰, 罗世芳, 沈若涵, 鄢俊. 自然时效对Al-2.95Cu-1.55Li-0.57Mg-0.18Zr合金160℃人工时效的影响[J]. 金属学报, 2023, 59(11): 1428-1438. [11] 杨超, 卢海洲, 马宏伟, 蔡潍锶. 选区激光熔化NiTi形状记忆合金研究进展[J]. 金属学报, 2023, 59(1): 55-74. [12] 解磊鹏, 孙文瑶, 陈明辉, 王金龙, 王福会. 制备工艺对FGH4097高温合金微观组织与性能的影响[J]. 金属学报, 2022, 58(8): 992-1002. [13] 耿遥祥, 唐浩, 许俊华, 张志杰, 喻利花, 鞠洪博, 江乐, 简江林. 选区激光熔化高强Al-(Mn, Mg)-(Sc, Zr)合金成形性及力学性能[J]. 金属学报, 2022, 58(8): 1044-1054. [14] 郑士建, 闫哲, 孔祥飞, 张瑞丰. 纳米金属层状材料强塑性的界面调控[J]. 金属学报, 2022, 58(6): 709-725. [15] 高川, 邓运来, 王冯权, 郭晓斌. 蠕变时效对欠时效7075铝合金力学性能的影响[J]. 金属学报, 2022, 58(6): 746-759. Viewed Full text Abstract Cited   Shared      Discussed