High Performance ZrNbAl Alloy with Low Thermal Expansion Coefficient

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2018,（8）
• 页码范围: 54-57
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/35/8/086501

摘要

Thermal expansion is a common phenomenon in both metals and alloys,which is important for metallic material applications in modern industry,especially in nuclear and aerospace industries.A lower thermal expansion coefficient may cause lower thermal stress and higher accuracy.A new Zr-based alloy is developed and presented.The XRD diffraction results demonstrate that only a close-packed hexagonal phase (α or α'phase) exists in the microstructure.The thermal expansion and mechanical properties are studied.According to the experimental results,the new Zr-based alloy presents a low thermal expansion coeffcient and good mechanical properties.Also,its thermal expansion coefficient is stable through solution treatment.