全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

SiCW/AZ91镁基复合材料及AZ91镁合金的高温变形行为

, PP. 103-108

Keywords: 镁基复合材料,镁合金,高温压缩,应变速率敏感指数,表观激活能

Full-Text   Cite this paper   Add to My Lib

Abstract:

利用Gleeble-1500对SiCW/AZ91复合材料和AZ91镁合金在温度为423~723K、应变速率为0.002~0.25s-1、最大应变量为60%的条件下进行高温压缩变形行为的研究。测试了其真应力-应变曲线,观察了变形后的显微组织。结果表明:晶须的转动和折断导致复合材料的应变软化现象较合金明显;复合材料和合金的应变速率敏感指数(m)和表观激活能(Q)均随温度的升高而增大;晶须的加入细化了晶粒,使复合材料的m值比合金高;同时晶须的加入也限制了位错交滑移和晶界的迁移,因此复合材料的Q值比合金高;压缩变形过程中,合金和复合材料发生了动态回复和动态再结晶。

References

[1]  Yan F, Wu K, Wu G L, et al . Superplastic deformationbehavior of a 1917 vol %β-SiCW/ ZK60 composite [J] . MaterL ett, 2003, 57 (13 - 14) : 1992 - 1996.
[2]  金埈洙, 菅又信, 金子纯一. SiC / AZ91合金複合材料の力学特性に及ぼす熱間押出の影響[J] .日本金属学会誌, 1991, 55 (5) : 521 - 528.
[3]  Geng L, Ochiai S, Hu J Q, et al . Compression testing of aSiCW/ Al composite at temperatures close to and above t hesolidus of t he mat rix alloy [J] . Mater Sci Eng A, 1998,A246 (1 - 2) : 302 - 305.
[4]  Saravanan R A, Surappa M K. Fabrication and characterization of pure magnesium ———30 vol % SiCP particle composite[J] . Mater Sci Eng A, 2000, A276 (1 - 2) : 108 - 116.
[5]  郭 成, 程 羽, 易树清, 等. SiC 颗粒增强铝基合金基梯度复合材料的制备与压缩性能研究[J] . 复合材料学报,1999, 16 (1) : 8 - 13.Guo Cheng, Cheng Yu, Yi Shuqing, et al . Study of fabrication and compressive performance of aluminium alloy mat rixgradient composites reinforced wit h SiC particles [J] . ActaMateriae Compositae S inica, 1999, 16 (1) : 8 - 13.
[6]  Cadek J, Oikawa H, Sustek V. Threshold creep behaviour ofdiscontinuous aluminium and aluminium alloy mat rix composites : An overview [J] . Mater Sci Eng A, 1995, A190(1 - 2) : 9 - 23.
[7]  Li Y, Mohamed F A. An investigation of creep behavior in anSiC-2124 Al composite [J] . Acta Mater, 1997, 45 ( 11 ) :4775 - 4785.
[8]  姜东涛, 郭建亭, 李谷松, 等. 原位内生多相复合材料(NiAl-28Cr-6Mo)-TiC 的高温力学行为[J] . 金属学报, 1998, 34(11) : 1143 - 1148.Jiang Dongtao, Guo Jianting, Li Gusong, et al . Elevatedtemperature deformation behavior of in si tu multiphase composite (NiAl-28Cr-6Co)-TiC [J] . Acta Metal lurgica S inica,1998, 34 (11) : 1143 - 1148.
[9]  Hu L X, Wang E D. Fabrication and mechanical properties ofSiCW/ ZK51A magnesium mat rix composite by two-stepsqueeze casting [J] . Mater Sci Eng A, 2000, A278 (1 - 2) :267 - 271.
[10]  Wu K, Zheng M Y, Zhao M, at el . Interfacial reaction insqueeze cast SiCW/ AZ91 magnesium alloy composite [J] .Scri pta Metal l Mater, 1996, 35 (4) : 529 - 534.
[11]  蔡 叶, 苏华钦. SiCP/ AZ80 镁基复合材料的界面与断口特征[J] . 复合材料学报, 1997, 14 (2) : 76 - 79.Cai Ye, Su Huaqin. Characteristic of t he interface and f racture surface on SiCP/ AZ80 composite [J] . Acta MateriaeCompositae S inica, 1997, 14 (2) : 76 - 79.
[12]  Gu M Y, Wu Z G, Jin Y P, et al . Effect s of reinforcement son t he aging response of a ZK60-based hybrid composite [J] .Mater Sci Eng A, 1999, A272 (2) : 257 - 263.
[13]  Zheng M Y, Wu K, Kamado S, et al . Aging behavior ofsqueeze cast SiCW/ AZ91 magnesium mat rix [J] . Mater SciEng A, 2003, A348 (1 - 2) : 67 - 75.
[14]  吴 昆, 神尾彰彦. SiCW/ AZ91 镁基复合材料的时效行为研究[J] . 复合材料学报, 1993, 10 (2) : 91 - 98.Wu Kun, Akihiko Kamio. A study of ageing behaviours ofSiCW/ AZ91 magnesium composites [J] . A cta MateriaeCompositae S inica, 1993, 10 (2) : 91 - 98.
[15]  PahutováM, Brezina J, Kucharova K, et al . Metallographicinvestigation of reinforcement damage in creep of an AZ91 matrixcomposite [J] . Mater Lett, 1999, 39(3) : 179 - 183.
[16]  Sklenicka V, Svoboda V, PahutováM, et al . Microst ructural processes in creep of an AZ 91 magnesium-based compositeand it s mat rix alloy [J] . Mater Sci Eng A, 2001, A319 -321 : 741 - 745.
[17]  Frantisek C, Pavel L, Milos J, et al . An evaluation of t hecreep characteristics of an AZ91 magnesium alloy compositeusing acoustic emission [J] . Mater Sci Eng A, 2002, A338(1 - 2) : 1 - 7.
[18]  Nieh T G, Schwartz A J, Wadswort h J . Superplasticity in a17 vol % SiC particulate-reinforced ZK60A magnesium composite ( ZK60/ SiC/ 17p) [J] . Mater Sci Eng A, 1996, A208(1) : 30 - 36.
[19]  Watanabe H, Mukai T, Mabuvhi M, et al . Superplastic deformation mechanism in powder metallurgy magnesium alloysand composites [J] . A cta Mater, 2002, 49 ( 11 ) : 2027 -2037.
[20]  Yan F, Wu K, Wu G L, et al . Superplastic deformationbehavior of a 1917 vol %β-SiCW/ ZK60 composite [J] . MaterL ett, 2003, 57 (13 - 14) : 1992 - 1996.
[21]  Geng L, Ochiai S, Hu J Q, et al . Compression testing of aSiCW/ Al composite at temperatures close to and above t hesolidus of t he mat rix alloy [J] . Mater Sci Eng A, 1998,A246 (1 - 2) : 302 - 305.
[22]  郭 成, 程 羽, 易树清, 等. SiC 颗粒增强铝基合金基梯度复合材料的制备与压缩性能研究[J] . 复合材料学报,1999, 16 (1) : 8 - 13.Guo Cheng, Cheng Yu, Yi Shuqing, et al . Study of fabrication and compressive performance of aluminium alloy mat rixgradient composites reinforced wit h SiC particles [J] . ActaMateriae Compositae S inica, 1999, 16 (1) : 8 - 13.
[23]  Cadek J, Oikawa H, Sustek V. Threshold creep behaviour ofdiscontinuous aluminium and aluminium alloy mat rix composites : An overview [J] . Mater Sci Eng A, 1995, A190(1 - 2) : 9 - 23.
[24]  Li Y, Mohamed F A. An investigation of creep behavior in anSiC-2124 Al composite [J] . Acta Mater, 1997, 45 ( 11 ) :4775 - 4785.
[25]  姜东涛, 郭建亭, 李谷松, 等. 原位内生多相复合材料(NiAl-28Cr-6Mo)-TiC 的高温力学行为[J] . 金属学报, 1998, 34(11) : 1143 - 1148.Jiang Dongtao, Guo Jianting, Li Gusong, et al . Elevatedtemperature deformation behavior of in si tu multiphase composite (NiAl-28Cr-6Co)-TiC [J] . Acta Metal lurgica S inica,1998, 34 (11) : 1143 - 1148.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133