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热压条件和铬合金化对新一代ODS合金在1100°C下微观结构和蠕变的影响

Influence of Hot Consolidation Conditions and Cr-Alloying on Microstructure and Creep in New-Generation ODS Alloy at 1100 °C.

作者信息

Svoboda Jiří, Luptáková Natália, Jarý Milan, Dymáček Petr

机构信息

Institute of Physics of Materials of the CAS, 616 62 Brno, Czech Republic.

出版信息

Materials (Basel). 2020 Nov 10;13(22):5070. doi: 10.3390/ma13225070.

DOI:10.3390/ma13225070
PMID:33182818
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7696533/
Abstract

The coarse-grained new-generation Fe-Al-YO-based oxide dispersion strengthened (ODS) alloys contain 5 vol.% homogeneously dispersed yttria nano-precipitates and exhibit very promising creep and oxidation resistance above 1000 °C. The alloy is prepared by the consolidation of mechanically alloyed powders via hot rolling followed by secondary recrystallization. The paper presents a systematic study of influence of rolling temperature on final microstructure and creep at 1100 °C for two grades (Fe-10Al-4YO and Fe-9Al-14Cr-4YO in wt%) of new-generation ODS alloys. The hot rolling temperatures exhibit a rather wide processing window and the influence of Cr-alloying on creep properties is evaluated as only slightly positive.

摘要

粗晶新一代Fe-Al-YO基氧化物弥散强化（ODS）合金含有5体积%均匀分布的氧化钇纳米析出物，在1000℃以上表现出非常有前景的蠕变和抗氧化性能。该合金通过对机械合金化粉末进行热轧然后二次再结晶来制备。本文对两种牌号（质量分数分别为Fe-10Al-4YO和Fe-9Al-14Cr-4YO）的新一代ODS合金在1100℃下轧制温度对最终微观结构和蠕变的影响进行了系统研究。热轧温度呈现出相当宽的加工窗口，并且评估了Cr合金化对蠕变性能的影响仅为略微正向。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f2f3/7696533/ce10edaec122/materials-13-05070-g007.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f2f3/7696533/00f0926aa732/materials-13-05070-g003.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f2f3/7696533/60b1b5c63a8e/materials-13-05070-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f2f3/7696533/f0594f1a6a3c/materials-13-05070-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f2f3/7696533/ce10edaec122/materials-13-05070-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f2f3/7696533/afd98d589dfb/materials-13-05070-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f2f3/7696533/5bdb646f93d0/materials-13-05070-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f2f3/7696533/00f0926aa732/materials-13-05070-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f2f3/7696533/11409695782f/materials-13-05070-g004a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f2f3/7696533/60b1b5c63a8e/materials-13-05070-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f2f3/7696533/f0594f1a6a3c/materials-13-05070-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f2f3/7696533/ce10edaec122/materials-13-05070-g007.jpg

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4
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The Effect of Heat Treatment on the Tribological Properties and Room Temperature Corrosion Behavior of Fe-Cr-Al-Based OPH Alloy.热处理对Fe-Cr-Al基OPH合金摩擦学性能及室温腐蚀行为的影响
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