当前位置: X-MOL 学术Corros. Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Effect of heat treatment on the microstructure and high temperature oxidation behavior of TiC/Inconel 625 nanocomposites fabricated by selective laser melting
Corrosion Science ( IF 7.4 ) Pub Date : 2020-06-01 , DOI: 10.1016/j.corsci.2020.108606
Lan Chen , Yuzhou Sun , Lin Li , Xudong Ren

Abstract The effects of heat treatment on the microstructure and high-temperature oxidation of selective laser melted TiC/IN625 nanocomposites were studied. Refined cellular grains, many dislocation structures and high proportion of sub-grain boundaries appeared in the as-built TiC/IN625 nanocomposites. After heat treatment (HT), the recrystallized grains and annealed twins did not appear in the TiC/IN625 nanocomposites. HT decreased the dislocation density, and most of grain boundaries had high misorientation angles. The HT-TiC/IN625 sample had the smallest parabolic rate. Only a single Cr2O3 oxide layer was formed in the HT-TiC/IN625 sample, meaning the heat treatment yielded a material with higher oxidation resistance.

中文翻译:

热处理对激光选区熔化制备的 TiC/Inconel 625 纳米复合材料微观结构和高温氧化行为的影响

摘要 研究了热处理对选择性激光熔化TiC/IN625纳米复合材料微观结构和高温氧化的影响。在构建的 TiC/IN625 纳米复合材料中出现了细化的蜂窝状晶粒、许多位错结构和高比例的亚晶界。热处理(HT)后,TiC/IN625 纳米复合材料中没有出现再结晶晶粒和退火孪晶。HT 降低了位错密度,并且大部分晶界具有高取向差角。HT-TiC/IN625 样品具有最小的抛物线率。在 HT-TiC/IN625 样品中仅形成单个 Cr2O3 氧化物层,这意味着热处理产生了具有更高抗氧化性的材料。
更新日期:2020-06-01
down
wechat
bug