Abstract: The effects of different warm rolling (WR) reductions on the microstructure and mechanical properties of low-Cr FeCrAl alloys at both room and elevated temperatures were investigated. The study revealed that when the WR reduction is small, it effectively refines the grains and forms a large number of subgrains in the matrix, while also inducing the dissolution of the Laves phase. This enhances the mechanical properties of FeCrAl alloys primarily through grain refinement and solid solution strengthening. Conversely, with larger WR reductions, the grain refinement effect diminishes, but a significant number of Laves phases form in the matrix, strengthening the alloys primarily through precipitation strengthening. WR exhibited a remarkable enhancing effect on the comprehensive mechanical properties at both room and high temperatures, with a signi-ficant enhancement in ductility at high temperatures. Notably, a 10% WR reduction resulted in the optimal overall mechanical properties at both room and elevated temperatures.
陈港明, 王辉, 黄雪飞. 温轧对低铬FeCrAl合金显微组织及室温和高温力学性能的影响[J]. 材料导报, 2025, 39(9): 24060057-11.
CHEN Gangming, WANG Hui, HUANG Xuefei. Effects of Warm Rolling on the Microstructure and Mechanical Properties of Low-Cr FeCrAl Alloys at Room and Elevated Temperatures. Materials Reports, 2025, 39(9): 24060057-11.
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