不同热镀锌层的组织与摩擦性能对比

doi:10.13251/j.issn.0254-6051.2025.09.017

摘要/Abstract

摘要： 以IF钢板为基板,在其上热镀锌GI、GA和ZM镀层,对比分析了不同镀层的组织和摩擦因数,并研究了退火温度及合金化温度对镀层的影响。结果表明,GI镀层为单一的纯锌η相,ZM镀层为二元和三元共晶相,改变退火温度对GI和ZM镀层相组成及摩擦因数无影响。随合金化温度升高,GA镀层中韧性ζ相向脆性δ相转变,导致摩擦因数逐渐减小。830 ℃退火温度下,GI镀层摩擦因数最大,约为0.315;ZM镀层摩擦因数较小,约为0.127;GA镀层(合金化温度580 ℃)摩擦因数最小,约为0.112。

关键词: 热镀锌镀层, 组织, 摩擦因数, 退火温度, 合金化温度

Abstract: Using IF steel sheet as the substrate, GI, GA, and ZM coatings were hot-dip galvanized on it. The microstructure and friction coefficient of different coatings were compared and analyzed, and effects of annealing temperature and alloying temperature on the coatings were studied. The results show that the GI coating is a single pure η phase, while the ZM coating is composed of binary and ternary eutectic phases. Changing the annealing temperature has no effect on the phase composition and friction coefficient of both the GI and ZM coatings. With the increase of alloying temperature, the tough ζ phase in the GA coating transforms into the brittle δ phase, resulting in a gradual decrease in the friction coefficient. At annealing temperature of 830 ℃, the friction coefficient of the GI coating is the largest, approximately 0.315, the friction coefficient of the ZM coating is smaller, about 0.127, and the friction coefficient of the GA coating (with alloying temperature of 580 ℃) is the smallest, around 0.112.

Key words: hot-dip galvanized coating, microstructure, friction coefficient, annealing temperature, alloying temperature

中图分类号:

TG142.1

吴庆美, 郭强, 卜凡征, 肖景江. 不同热镀锌层的组织与摩擦性能对比[J]. 金属热处理, 2025, 50(9): 113-117.

Wu Qingmei, Guo Qiang, Bu Fanzheng, Xiao Jingjiang. Comparison of microstructure and friction properties of different hot-dip galvanized coatings[J]. Heat Treatment of Metals, 2025, 50(9): 113-117.

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