[1]王奥嵋琳,李帅,邢丽丹,等.包埋渗铝对310S不锈钢高温氧化行为的影响[J].中国材料进展,2026,45(08):685-693.[doi:10.7502/j.issn.1674-3962.202605022]
WANG Aomeilin,LI Shuai,XING Lidan,et al.Effect of Pack Aluminizing on High-Temperature Oxidation Behavior of 310S Stainless Steel[J].MATERIALS CHINA,2026,45(08):685-693.[doi:10.7502/j.issn.1674-3962.202605022]
点击复制
包埋渗铝对310S不锈钢高温氧化行为的影响(
)
中国材料进展[ISSN:1674-3962/CN:61-1473/TG]
- 卷:
-
45
- 期数:
-
2026年08
- 页码:
-
685-693
- 栏目:
-
- 出版日期:
-
2026-08-08
文章信息/Info
- Title:
-
Effect of Pack Aluminizing on High-Temperature Oxidation Behavior of 310S Stainless Steel
- 文章编号:
-
1674-3962(2026)08-0685-09
- 作者:
-
王奥嵋琳; 李帅; 邢丽丹; 祁一东; 鲍泽斌
-
1.东北大学冶金学院，辽宁 沈阳 1108192.中国科学院金属研究所 师昌绪先进材料研究中心，辽宁 沈阳 1100163.中船重工龙江广瀚燃气轮机有限公司，黑龙江 哈尔滨 150078
- Author(s):
-
WANG Aomeilin; LI Shuai; XING Lidan; QI Yidong; BAO Zebin
-
1. School of Metallurgy，Northeastern University，Shenyang 110819，China2. Shi’Changxu Innovation Center for Advanced Materials，Institute of Metal Research，Chinese Academy of Sciences, Shenyang 110016，China3. CSIC Longjiang Guanghan Gas Turbin Co.，Ltd.，Harbin 150078，China
-
- 关键词:
-
包埋渗铝; 310S不锈钢; 铝化物涂层; 预氧化; 抗高温氧化性能
- Keywords:
-
pack cementation aluminizing; 310S stainless steel; aluminide coating; pre-oxidation; high-temperature oxidation resistance
- 分类号:
-
TG174.4；TG142.71
- DOI:
-
10.7502/j.issn.1674-3962.202605022
- 文献标志码:
-
A
- 摘要:
-
310S不锈钢凭借其优异的高温力学性能被广泛应用于换热器等高温工况设备中，然而长期暴露于高温工作环境会导致基体表面不可避免地发生氧化而失效。采用包埋渗铝工艺在310S不锈钢表面制备了铝化物涂层，通过低压预氧化处理，促进涂层表面预先生成致密的α-Al2O3保护膜。通过恒温氧化实验对比研究了基体310S不锈钢、制备态FeAl涂层、预氧化FeAl涂层在800，900 和1000 ℃下氧化300 h的动力学行为，并结合XRD、SEM及EDS等表征测试方法进行分析。结果表明，无涂层基体表面生成的Cr2O3、MnCr2O4等氧化物易剥落失效，涂层表面生成保护性的Al2O3膜。渗铝涂层显著降低了基体的氧化速率，氧化速率常数KP较基体降低了1~2个数量级。渗铝涂层在3种测试温度下氧化300 h后的动力学曲线均符合抛物线规律。而基体仅在800 ℃下满足抛物线规律，而当测试温度升高至900和1000 ℃时，基体的氧化增重拟合曲线呈现出明显的非线性特征，这与Cr2O3的挥发与反复剥落有关。在基体表面施加高温防护涂层结合预氧化工艺，显著提升了材料的抗高温氧化性能。
- Abstract:
-
310S stainless steel is widely applied to high-temperature equipment such as heat exchangers due to its excellent high-temperature mechanical properties.Nevertheless, long-term service at elevated temperatures inevitably causes surface oxidation and subsequent failure of the substrate. In this work,aluminide coatings were fabricated on 310S stainless steel via the pack cementation aluminizing process. Low-pressure pre-oxidation treatment was adopted to promote the in-situ formation of a dense α-Al2O3 protective scale on the coating surface. Isothermal oxidation experiments were conducted to comparatively investigate the oxidation kinetic behaviors of bare 310S substrate, as-prepared FeAl coating and pre-oxidized FeAl coating during 300 h oxidation at 800, 900 and 1000 ℃. Combined with multiple characterization methods including XRD, SEM and EDS, the oxidation mechanism was further analyzed. The results reveal that the oxides formed on the uncoated substrate, such as Cr2O3 and MnCr2O4, are prone to spallation and structural failure. A protective alumina scale is formed on the coating surface. The as-aluminized coating remarkably reduces the oxidation rate of the substrate, and its oxidation rate constant KP is decreased by 1~2 orders of magnitude in comparison with the bare substrate. The oxidation kinetic curves of aluminide coatings during 300 h oxidation at all three temperatures comply well with the parabolic oxidation law. In contrast, the substrate follows the parabolic oxidation law only at 800 ℃. When the temperature rises to 900 and 1000 ℃,the mass gain fitted curves of the substrate present obvious nonlinear characteristics, which is closely associated with the volatilization and repeated spallation of Cr2O3. The combination of high-temperature protective aluminide coating and reasonable pre-oxidation treatment can greatly improve the high-temperature oxidation resistance of 310S stainless steel.
备注/Memo
- 备注/Memo:
-
收稿日期：2026-05-20修回日期：2026-06-15第一作者：王奥嵋琳，女，2002年生，硕士研究生通讯作者：鲍泽斌，男，1980年生，研究员，博士生导师，Email:zbbao@imr.ac.cn李帅，男，1994年生，助理研究员，Email:sli17s@imr.ac.cn
更新日期/Last Update:
2026-06-30