AnT2COK, an analytical model for cyclic oxidation kinetics of hot-work tool steels in transient thermal cycling conditions

被引：3

作者：

Dour, G. ^{[1
,2
]}

Salem, M. ^{[1
]}

Le Roux, S. ^{[1
]}

Texier, D. ^{[1
]}

Medjedoub, F. ^{[1
,3
]}

Lamesle, P. ^{[1
,4
]}

Rezai-Aria, F. ^{[1
]}

机构：

[1] Univ Toulouse, CNRS, ICA, INSA,UPS,Mines Albi,ISAE SUPAERO, Campus Jarlard, F-81013 Albi 09, France

[2] Worley Parsons, 600 Murray St, Perth, WA 6005, Australia

[3] Airbus France, Site St Martin Touch,316 Route Bayonne, F-31060 Toulouse 9, France

[4] IRT M2P, Batiment CIRAM,4 Rue Augustin Fresnel, F-57070 Metz, France

来源：

CORROSION SCIENCE | 2019年 / 147卷

关键词：

Tool steel; Modeling; SEM; Thermal cycling; High temperature corrosion; Cyclic oxidation; HIGH-TEMPERATURE; THERMOMECHANICAL FATIGUE; WEAR BEHAVIOR; OXIDE SCALES; RESISTANCE; ALUMINUM; FRICTION; CREEP;

D O I：

10.1016/j.corsci.2018.11.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In hot forming processes, steel tools are subjected to rapid temperature transients and cyclic oxidation. AnT(2)COK, a new analytical model based on diffusion-controlled oxide growth in cyclic conditions, is proposed to predict the parabolic oxidation kinetics in spallation-free conditions. Compared to cyclic oxidation models of the literature (COREST, COSP, DICOSM, etc.), it is applicable for any shape of thermal cycle, fully transient or with dwell time. The model is applied to thermal fatigue tests on X38CrMoV5 steel, for T-max between 500 and 685 degrees C. Its validity is demonstrated above 550 degrees C, using frequency factor and activation energy calculated from isothermal tests.

引用

页码：169 / 181

页数：13