压缩变形铁-锰-硅-铬-镍合金的形状恢复行为

IF 1.3 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Emerging Materials Research Pub Date : 2024-04-16 DOI:10.1680/jemmr.23.00090

A Syed Bava Bakrudeen, D Jeyasimman

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引用次数: 0

摘要

通过粉末冶金和烧结技术，利用不同的固体体积分数，制造出了由形状记忆铁-xMn-5Si-5Ni-yCr制成的圆柱形合金。对压缩力导致的形状恢复进行了分析，并将其与体积分数相关联。由于在熔炉冷却过程中会形成氧化物、沉淀物和意外的金属间化合物，因此锰（Mn）的浓度越高，形状恢复能力就越低。晶界内和晶界周围出现的位错是导致形状恢复能力下降的另一个重要因素。铬（Cr）含量的增加降低了在晶界周围发生位错的可能性。对压缩变形的效果进行了研究和相关分析。

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The shape recovery behavior of compressively deformed Fe–Mn–Si–Cr–Ni alloys

Cylindrical alloys fabricated from shape memory Fe–xMn–5Si–5Ni–yCr were produced by utilizing diverse solid volume fractions through the use of the powder metallurgy and sintering technique. The shape recovery due to compressive force was analyzed and correlated with the volume fractions. A higher concentration of manganese (Mn) will result in a decrease in shape recovery as a result of the formation of oxides, precipitates and unintended intermetallics during the furnace cooling process. The dislocation occurring within and around the grain boundary is another significant factor contributing to the reduction in shape recovery. The increase in chromium (Cr) content reduces the likelihood of dislocation around the grain boundary. The effectiveness of compressive deformation was examined and correlated.

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来源期刊

Emerging Materials Research MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

4.50

自引率

9.10%

发文量

期刊介绍： Materials Research is constantly evolving and correlations between process, structure, properties and performance which are application specific require expert understanding at the macro-, micro- and nano-scale. The ability to intelligently manipulate material properties and tailor them for desired applications is of constant interest and challenge within universities, national labs and industry.