Longjia Li , Zhongsheng Yang , Kengfeng Xu , Dingcong Cui , Lei Wang , Zhijun Wang , Junjie Li , Jincheng Wang , Feng He
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引用次数: 0
Abstract
NiTiHf alloy is one of the most promising candidates for high-temperature shape-memory actuators. Although the phase transition behavior of NiTiHf is well understood, there are still new revelations. Here, we for the first time report the strain glass state in a NiTiHf alloy. Our results demonstrate that the H-phase precursor generated during rapid cooling suppresses the normal martensitic phase transition of NiTiHf, leading to the strain glass state. Moreover, we successfully controlled the strain glass transition via changing the cooling rate. These new findings make the NiTiHf system promising for high-temperature superelastic materials.
期刊介绍：
Scripta Materialia is a LETTERS journal of Acta Materialia, providing a forum for the rapid publication of short communications on the relationship between the structure and the properties of inorganic materials. The emphasis is on originality rather than incremental research. Short reports on the development of materials with novel or substantially improved properties are also welcomed. Emphasis is on either the functional or mechanical behavior of metals, ceramics and semiconductors at all length scales.
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