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首页> 外文期刊>ISIJ international >Effect of Ti and W on the Mechanical Properties and Microstructure of 12% Cr Base Mechanical-alloyed Nano-sized ODS Ferritic Alloys
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Effect of Ti and W on the Mechanical Properties and Microstructure of 12% Cr Base Mechanical-alloyed Nano-sized ODS Ferritic Alloys

机译：Ti和W对12％Cr基机械合金化ODS铁素体合金力学性能和组织的影响

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摘要

In recent years, research and development of high-temperature structural materials for ultra-super critical pressure plant with increased energy efficiency have actively been in progress so as to solve global environmental pollution and resource exhaustion issues. Oxide-dispersed-stfengthened (ODS) ferritic alloys produced by mechanical alloying (MA) have been developed as alternative materials with very high-temperature strength at the ultra-super critical pressure. In this study, Fe-12%Cr ODS based alloys containing Ti and W have been made and the effects of Ti and W on the high-temperature strength of the alloys were investigated. The results show that high-temperature tensile strength and creep rupture strength of the 12YWT steel containing 0.4% Ti and 3% W were the highest. This is mainly due to the formation of fine complex oxides of Ti-Y-0 by the addition of Ti and their homogeneous distribution. It is also suggested that solid solution hardening by W occurs as a result of uniform distribution of W in solution.
机译：近年来，为解决全球环境污染和资源枯竭的问题，为提高能效的超超临界压力装置的高温结构材料的研究与开发正在积极进行中。通过机械合金化（MA）生产的氧化物分散的增强型（ODS）铁素体合金已被开发为在超超临界压力下具有很高的高温强度的替代材料。在这项研究中，制备了含Ti和W的Fe-12％Cr ODS基合金，并研究了Ti和W对合金高温强度的影响。结果表明，含有0.4％的Ti和3％的W的12YWT钢的高温拉伸强度和蠕变断裂强度最高。这主要归因于通过添加Ti及其均匀分布形成的Ti-Y-0细复合氧化物。还建议由于W在溶液中的均匀分布而发生W引起的固溶硬化。

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