金属学报  1988, Vol. 24 Issue (5): 317-324

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时效对Mn-Cu-Al三元合金的内耗、杨氏模量和力学性能的影响

衣虎春;葛庭燧

中国科学院固体物理研究所;教授;合肥中国科学院固体物理研究所

EFFECT OF AGING ON INTERNAL FRICTION, ELASTIC MODULUS AND MECHANICAL PROPERTIES OF TERNARY Mn-Cu-Al ALLOYS

YI Huchun;GE Tingsui (T. S. Ke) Institute of Solid State Physics; Academia Sinica. Hefei

衣虎春;葛庭燧. 时效对Mn-Cu-Al三元合金的内耗、杨氏模量和力学性能的影响[J]. 金属学报, 1988, 24(5): 317-324.
, . EFFECT OF AGING ON INTERNAL FRICTION, ELASTIC MODULUS AND MECHANICAL PROPERTIES OF TERNARY Mn-Cu-Al ALLOYS[J]. Acta Metall Sin, 1988, 24(5): 317-324.

摘要 参考文献 相关文章 Metrics 全文: PDF(713 KB)   摘要: 测量了Mn-Cu-Al三元合金(含56-60wt-％Mn,0-3.59wt-％Al)在-150—150℃的声频内耗,发现当试样在调幅线的温度范围内进行时效时,内耗随着时效时间的增加而增加,并在特定的时间内达到极大值.时效温度越高,达到极大值的时间越短.在时效一定的时间后出现马氏体相变峰和孪晶界面弛豫峰.相变峰随着时效时间的增加而向高温移动;弛豫峰则出现在15℃左右(频率约1kHz),测得其激活能是0.56eV. 在调幅线内时效使合金的硬度、强度及脆性墙加,Al元素有增加合金的强度而降低其内耗的作用.实验结果表明,在450℃时效2—3h,可得到合金的内耗和强度的最佳综合指标. 根据内耗、模量、金相检验和X射线分析的结果,认为调幅分解后产生的富Mn区是合金发生相变和高内耗的来源,也是合金的强度增加和韧性降低的原因. 关键词 ： Mn-Cu-Al合金,  内耗,  弹性模量,  力学性能,  时效     Abstract：Internal friction and elastic modulus of ternary Mn-Cu-Al alloys con-taining 56--60 wt-% Mn, 0--3.59wt-% Al were measured with acoustic frequency, 1kHz, in the temperature range of -150 to 150℃. It was found that when the spe-cimen was aged in the temperature range under the spinodal curve within the mis-cibility gap, the internal friction increases with an increase of the aging time andreaches a maximum value at a certain aging time which is shorter with a higheraging temperature. Two internal friction peaks which did not appear before theaging were observed above room temperature after a definite aging time. These arethe martensite transformation peak and the relaxation peak originating from thestress-induced movement of the twin boundaries. The former peak shifts towardhigher temperatures with an increase of the aging time, whereas the relaxationpeak appearing at 15℃, is independent of the aging time and temperature. The ac-tivation energy associated with the relaxation peak was found to be 0.56 eV whichis about the same as that of the relaxation peak in binary alloy containing 90wt-% Mn. It was also found that the hardness, strength and the brittleness of thespecimen increase when aged below the spinodal curve within the miscibility gap.The addition of Al enhances the strength but reduces the internal friction of thespecimen. A choice of suitable aging time and temperature can give an optimum com-promise of high strength and high internal friction. Analysis of experimental re-sults suggests that spinodal decomposition leads to Mn-rich zones in the specimenand thus causes the phase transformation and the change of mechanical propertiesof the specimen. Key words： internal friction    Mn-Cu-Al alloy    elastic modulus    mechanical properties    aging 收稿日期: 1988-05-18      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 衣虎春 葛庭燧 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1988/V24/I5/317 1 Butler E P, Kelly P M. Trans Metall Soc AIME, 1968; 242: 2099 2 Vitek J M, Warlimont H. Met Sci, 1976; 10: 7 3 Birchon D, Bromley D E, Healey D. Met Sci J, 1968; 2: 41 4 盛宗毅,私人消息 5 Sugimoto K. Mori T, Shiode S. Met Sci J, 1973; 7: 103 6 Vintaykin Ye Z, Dmitriyev V B, Udovenko V A. Phys Met Metallogr, (Eng. ed.), 1979: 44: 107 7 Smith J H, Vance E R. J Appl Phys, 1969; 40: 4853 8 Worrell F T. J Appl Phys, 1948; 19: 929 9 Zener C. Elasticity and Anelasticity of Metals, University Chicago Press, 1948: 160w [1] 郑亮, 张强, 李周, 张国庆. 增/降氧过程对高温合金粉末表面特性和合金性能的影响：粉末存储到脱气处理[J]. 金属学报, 2023, 59(9): 1265-1278. [2] 张健, 王莉, 谢光, 王栋, 申健, 卢玉章, 黄亚奇, 李亚微. 镍基单晶高温合金的研发进展[J]. 金属学报, 2023, 59(9): 1109-1124. [3] 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. [4] 宫声凯, 刘原, 耿粒伦, 茹毅, 赵文月, 裴延玲, 李树索. 涂层/高温合金界面行为及调控研究进展[J]. 金属学报, 2023, 59(9): 1097-1108. [5] 李景仁, 谢东升, 张栋栋, 谢红波, 潘虎成, 任玉平, 秦高梧. 新型低合金化高强Mg-0.2Ce-0.2Ca合金挤压过程中的组织演变机理[J]. 金属学报, 2023, 59(8): 1087-1096. [6] 丁桦, 张宇, 蔡明晖, 唐正友. 奥氏体基Fe-Mn-Al-C轻质钢的研究进展[J]. 金属学报, 2023, 59(8): 1027-1041. [7] 陈礼清, 李兴, 赵阳, 王帅, 冯阳. 结构功能一体化高锰减振钢研究发展概况[J]. 金属学报, 2023, 59(8): 1015-1026. [8] 袁江淮, 王振玉, 马冠水, 周广学, 程晓英, 汪爱英. Cr2AlC涂层相结构演变对力学性能的影响[J]. 金属学报, 2023, 59(7): 961-968. [9] 吴东江, 刘德华, 张子傲, 张逸伦, 牛方勇, 马广义. 电弧增材制造2024铝合金的微观组织与力学性能[J]. 金属学报, 2023, 59(6): 767-776. [10] 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. [11] 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. [12] 侯娟, 代斌斌, 闵师领, 刘慧, 蒋梦蕾, 杨帆. 尺寸设计对选区激光熔化304L不锈钢显微组织与性能的影响[J]. 金属学报, 2023, 59(5): 623-635. [13] 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. [14] 张东阳, 张钧, 李述军, 任德春, 马英杰, 杨锐. 热处理对选区激光熔化Ti55531合金多孔材料力学性能的影响[J]. 金属学报, 2023, 59(5): 647-656. [15] 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. Viewed Full text Abstract Cited   Shared      Discussed