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Zr基与Ti基非晶合金的不同划痕变形行为
Alternative TitleDeformation patterns in Zr-based and Ti-based metallic glasses under scratch processes
卢通; 夏雷; 胡铮; 邢建硕; 胡燕萍; 徐光跃; 魏炳忱
Source Publication中国科学. 物理学, 力学, 天文学
2012-06-20
Volume42Issue:6Pages:603-608
ISSN1674-7275
Abstract采用痕法研究了Zr_(47.9)Ti_(0.3)Ni_(3.1)Cu_(39.3)Al_(9.4)与Ti_(40)Zr_(25)Be_(30)Cr_5两种非晶合金的塑性变特征,考查了载荷与痕速度对塑性变特征的影响.结果表明两种铸态非晶合金样品的剪切带表现出同的特征:Ti非晶合金在痕两侧剪切带现分枝特征,随着载荷和痕速度的增加,出现多重分枝和混乱分特征;而Zr非晶合金的剪切带特征以一次剪切带为主,随载荷和痕速度增加,剪切带特征向单一、平滑趋势转变.进一研究了弛豫对Zr非晶合金痕变特征的影响,发现弛豫使Zr非晶合金剪切带向分枝特征转变.从自由体积观点探讨了两种合金中同剪切带特征的和演制.
Other AbstractThe plastic deformation features of Zr-and Ti-based bulk metallic glasses(BMGs) are investigated by scratch method under different applied load and scratch velocity.The results show that the two BMG systems exhibit quite different shear band features during scratch processes.Shear band branching are found in Ti-based BMG,and the branching are more prominent at high applied load and rate during the scratch process.In contrast,the Zr-based BMG shows primary shear band dominating pattern,which becomes more str...
Keyword非晶合金 剪切带 塑性变
Subject Area新型材料的力学问题
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Indexed ByCSCD
Language中文
Funding Organization国家自然科学基金(批准号:51071166,50731008,51171100); 国家重点基础研究发展计划(编号:2007CB613905)资助项目
CSCD IDCSCD:4598110
DepartmentNML空间材料物理力学
Classification二类
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46433
Collection国家微重力实验室
Corresponding Author魏炳忱
Recommended Citation
GB/T 7714
卢通,夏雷,胡铮,等. Zr基与Ti基非晶合金的不同划痕变形行为[J]. 中国科学. 物理学, 力学, 天文学,2012,42(6):603-608.
APA 卢通.,夏雷.,胡铮.,邢建硕.,胡燕萍.,...&魏炳忱.(2012).Zr基与Ti基非晶合金的不同划痕变形行为.中国科学. 物理学, 力学, 天文学,42(6),603-608.
MLA 卢通,et al."Zr基与Ti基非晶合金的不同划痕变形行为".中国科学. 物理学, 力学, 天文学 42.6(2012):603-608.
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