Effects of Fe diffusion driven by thermal history on the tribological behaviour of Al-Si coated 22MnB5 under varying load conditions in hot stamping

被引：0
|
作者：
Ji, Min-Ki [1 ]
Son, Hyunsung [2 ]
Shim, Gyu Hyeon [3 ]
Ahn, Ho Seon [1 ,3 ]
Jun, Tea-Sung [1 ,4 ]
机构：
[1] Incheon Natl Univ, Dept Mech Engn, Incheon 22012, South Korea
[2] POSCO, Steel Solut Res Lab, Mat Forming Res Grp, Incheon 21985, South Korea
[3] AHN Mat Inc, Incheon 22012, South Korea
[4] Incheon Natl Univ, Res Inst Engn & Technol, Incheon 22012, South Korea
来源：
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2025年 / 35卷
关键词：
Hot stamping; High-temperature tribology; Al-Si coating; Oxidation; 22MnB5; INTERMETALLIC COMPOUND FORMATION; HIGH-STRENGTH; WEAR MECHANISMS; TOOL STEEL; TERNARY-SYSTEM; FRICTION; CRASHWORTHINESS; TEMPERATURE; PREDICTION;
D O I：
10.1016/j.jmrt.2025.02.176
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
With the advancement of the automotive industry, the demand for superior mechanical properties has inevitably driven changes in steel sheet thickness. Consequently, considerable attention has been given to variations in thermal history that arise due to differences in thickness, even under identical heat treatment conditions. This study examined the influence of thermal history on hot stamping wear behaviour by varying only the thickness of the base material, 22MnB5 boron steel, to 1.2 mm and 1.4 mm under identical processing conditions. After heat treatment, Fe2O3, an Fe oxide, was detected only on the surface of the 1.2 mm steel sheet, leading to a distinct difference in tribological behaviour between the two materials. This disparity is attributed to variations in Fe diffusion during heat treatment, governed by thermal history. These findings offer valuable insights into the role of thermal history in diffusion and phase transformation during heat treatment, contributing to a deeper understanding of material behaviour in hot stamping applications.
引用
收藏
页码：5475 / 5483
页数：9
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