沈阳大学学报（自然科学版）2026，Vol.38Issue(4)：263-270,封2,封3,10.
先进高强钢热轧态氧化铁皮还原退火行为
Reduction Annealing Behavior of As-Rolled Scale on Advanced High-Strength Steel
摘要
Abstract
To address the core issues in the industrial application of pickling-free hot-rolled high-strength steel and pickling-free reduction annealing technology,the reduction behavior of the scale on as-rolled advanced high-strength steel was investigated through simulated annealing experiments.Isothermal reduction experiments were conducted in a mixed reducing atmosphere of 30％H2 and 70％N2(volume fraction)over a temperature range of 500～1 100 ℃.The results demonstrated that the reduction kinetics of the scale exhibited a distinct three-stage temperature-dependent behavior.In the range of 500～700 ℃,atomic nucleation and growth were the rate-controlling steps,yielding porous iron as the reduction product.In the range of 800～1 100 ℃,the rate-controlling mechanism shifted to phase-boundary reaction and diffusion,resulting in dense iron.A reduction trough was observed at 700 ℃,where the scale underwent a transition from a porous to a dense structure.When the temperature reached 800 ℃ or above,internal oxidation occurred in the substrate,and the morphology of the internal oxides gradually evolved from strip-like to dot-like with increasing temperature.关键词
热轧态先进高强钢,氧化铁皮/高温氧化/还原退火/内氧化Key words
as-rolled advanced high-strength steel/scale/high-temperature oxidation/reduction annealing/internal oxidation分类
矿业与冶金引用本文复制引用
孙彬,张苇豪..先进高强钢热轧态氧化铁皮还原退火行为[J].沈阳大学学报（自然科学版）,2026,38(4):263-270,封2,封3,10.基金项目
"兴辽英才计划"青年拔尖人才项目(XLYC2203082). （XLYC2203082）
