The origin of the maximum hardness of the friction stir welded single-phase Cu-Zn plates: RSM, EBSD, and TEM investigation

被引：21

作者：

Heidarzadeh, Akbar ^{[1
]}

Motalleb-nejad, Pouyan ^{[2
]}

Barenji, Reza Vatankhah ^{[3
]}

Khalili, Vida ^{[4
]}

Guleryuz, Guldal ^{[3
]}

机构：

[1] Azarbaijan Shahid Madani Univ, Dept Mat Engn, Tabriz, Iran

[2] Sahand Univ Technol, Fac Mat Engn, Tabriz, Iran

[3] Hacettepe Univ, Dept Ind Engn, TR-06800 Ankara, Turkey

[4] Univ Bonab, Dept Mat Sci & Engn, Bonab, Iran

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2019年 / 223卷

关键词：

Friction stir welding; Hardness; Microstructure; EBSD; MECHANICAL-PROPERTIES; WELDING PARAMETERS; YIELD STRENGTH; MICROSTRUCTURE; DEFORMATION; BEHAVIOR; COLD;

D O I：

10.1016/j.matchemphys.2018.10.033

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The friction stir welding parameters were optimized to achieve the maximum hardness of the single phase brass joints. The results showed that the rotational and traverse speeds had the highest and lowest effect on the hardness, respectively. The empirical models predicted that the maximum hardness of 119 Hv can be reached by using a rotational speed of 700 rpm, a traverse sped of 100 mm/min, and an axial force of 1.5kN. The origin of the higher hardness value of the optimum condition compared to the other joint was due to the strengthening mechanisms of grain boundaries and dislocation densities. In addition, the Hall-Petch relationship between the hardness and grain size of the joints showed a deviation from the linear equation due to the formed substructures in the joints.

引用

页码：9 / 15

页数：7

共 27 条

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