金属学报  1998, Vol. 34 Issue (6): 603-608

论文 本期目录 | 过刊浏览 |

Al—Li单晶体锯齿流变的产生机制

田宝辉;李焕喜;张永刚;陈昌麒

北京航空材料研究院;北京;100095;北京航空航天大学;北京;100083;北京航空航天大学;北京;100083;北京航空航天大学;北京;100083

MECHANISM FOR THE OCCURRENCE OF SERRATED FLOW IN Al-Li SINGLE CRYSTALS

TIAN Boohui(Beliing Institute of Aeronautical Materials; Beijing 100095)LI Huanxi; ZHANG Youggang; CHEN Changqi(Beijing University of Aeronautics and Astronautics; Beijing 100083)Corresponent: TIAN Baohui; Tel: (010)62456622-5021 Fax:(010)62456925

田宝辉;李焕喜;张永刚;陈昌麒. Al—Li单晶体锯齿流变的产生机制[J]. 金属学报, 1998, 34(6): 603-608.
, , , . MECHANISM FOR THE OCCURRENCE OF SERRATED FLOW IN Al-Li SINGLE CRYSTALS[J]. Acta Metall Sin, 1998, 34(6): 603-608.

摘要 参考文献 相关文章 Metrics 全文: PDF(1406 KB)   摘要: 不同时效状态下Al—Li单晶体应变速率敏感性的变化不同．单个锯齿的应力幅度防应变的增加不规则变化，和锯齿的经历时间无关；锯齿的应力幅度和经历时间在峰值时效状态主要分布在较小值的范围内．这些变化可以用切割δ＇粒子产生锯齿流变解释． 关键词 ： 应变速率敏感性,  应力幅度,  经历时间,  锯齿流变     Abstract：Strain rate sensitivity varies in a different mariner in Al-Li single crystalsunder different ageing conditions. Stress drops change irregularly with increasing strain andbear no relation to elapsed time for individual serrations. Stress drops and elapsed time duringserrated flow Primarily distribute within their low values under peak aged condition, comparedwith underaged and overaged states. These behaviors may be explained by sheared σ＇ particlesinducling serrated flow. Key words： strain rate sensitivity    stress drop    elapsed time    serrated flow 收稿日期: 1998-06-18      基金资助:四川省青年科学基金!925010 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 田宝辉 李焕喜 张永刚 陈昌麒 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1998/V34/I6/603 1 Behnood N, Evans J T. Acta Metall 1989; 37: 687 2 Kumars,Krol J,Pink E.Scr Mater 1996;35:775 3 Ilic N, Drobnjak Dj, Radmilovic V, Jovanovic M T, Markovic D. Ser Mater 1996; 34: 1123 4 田宝辉,李焕喜,张永刚,陈昌麒.金属学报,1997;33:577 (Tian B H, Li H X, Zhang Y G, Chen C Q. Acta Metall Sin, 1997; 33: 577) 5 Kocks U F ,Cook R E,Mulford R A.Acta Metall 1985;33:623 6 McCormick P G. Acto Metall 1972; 20: 351 7 Hong K T, Nam S W. Acta Metal 1989; 37: 31 8 Diego N,Rio J del ,Segers D,Dorkens-Vapraet L,Dorikens M.Phy Rev 19930;B48:6781 9 Harun H J ,McCormick P G ,Acta Metall ,1979;27:155 10 McCormick P G. Acta Metall, 1971; 19: 463 11 Pink E, Grinberg A. Acta Metal 1982; 30: 2153 12 Fujita H, Tanata T. Acta Metall, 1977; 25: 793 13 Kumar S and Pink E.Acta Mater 1997;45:5205 14 Brechet Y ,Estrin Y.Scr Metall Mater 1994;31:185 [1] 蔡贇,孙朝阳,万李,阳代军,周庆军,苏泽兴. AZ80镁合金动态再结晶软化行为研究*[J]. 金属学报, 2016, 52(9): 1123-1132. [2] 赵帅 李秀艳 戎利建. 一种奥氏体FeNi基合金中的锯齿流变现象[J]. 金属学报, 2011, 47(8): 1017-1021. [3] 田宝辉;李焕喜;张永刚;陈昌麒. Al—Li单晶体中锯齿流变行为的影响因素[J]. 金属学报, 1997, 33(6): 577-582. [4] 田宝辉;张永刚;陈昌麒. Al-Li单晶体锯齿流变的形态特征[J]. 金属学报, 1996, 32(3): 249-253. [5] 吴敏;徐约黄;沈功田. 时效对LC9铝合金锯齿流变的影响[J]. 金属学报, 1991, 27(5): 33-38. [6] 崔建忠;马龙翔. 超塑变形的特征参数[J]. 金属学报, 1988, 24(1): 92-96. Viewed Full text Abstract Cited   Shared      Discussed