In situ synchrotron investigation of the deformation behavior of nanolamellar Ti₅Si₃/TiNi composite

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• 作者：Daqiang Jiang^a ; ^{dq80jiang@126.com" class="auth_mail} ; Shijie Hao^a ; Junsong Zhang^a ; Yinong Liu^b ; Yang Ren^c ; Lishan Cui^a ; ^{lscui@cup.edu.cn" class="auth_mail}
• 关键词：Composites ; Shape memory alloy ; NiTi ; Synchrotron ; Strain matching
• 刊名：Scripta Materialia
• 出版年：May, 2014
• 年：2014
• 卷：78-79
• 期：Complete
• 页码：53-56
• 全文大小：780 K

文摘

An in situ nanolamellar Ti₅Si₃/TiNi composite is prepared by arc melting based on the design principle of load sharing between a hard component and a phase transforming matrix. The composite showed a compressive strength of 鈭?.5 GPa and a fracture strain of 鈭?5%. In situ synchrotron X-ray diffraction analysis revealed stage-wise load transfer between the two components and the achievement of 2.1% lattice elastic strain of the brittle ceramic compound Ti₅Si₃, demonstrating the effectiveness of strain matching design.