Evaluation of Fracture Toughness of Thermal Sprayed and Hard Chrome Coated Aluminium-Zinc Alloy

被引：6
|
作者：
Altuncu, E. [1 ]
Iric, S. [2 ]
机构：
[1] Sakarya Univ, Technol Fac, Met & Mat Engn Dept, Sakarya, Turkey
[2] Sakarya Univ, Engn Fac, Mech Engn Dept, Sakarya, Turkey
来源：
ACTA PHYSICA POLONICA A | 2017年 / 132卷 / 03期
关键词：
D O I：
10.12693/APhysPolA.132.926
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The determination of fracture toughness of aluminium alloy aviation parts, exposed to cyclic mechanical loading, is an important engineering issue. The service life and crack resistance of such unprotected metallic parts is limited under corrosive operating conditions. The resistance against fracture cracking and corrosion resistance can be increased by the surface coatings. The scientific research of fracture toughness of coated metallic parts is being carried out in a comprehensive way. In this research, fracture toughness behaviour of high velocity oxy-fuel (HVOF) spray coated and conventional hard chrome plated aluminium-zinc alloy parts were compared and the results are discussed. The fracture surfaces are investigated and fracture toughness values are calculated. Electron microscopy analysis revealed significant differences in crack growth morphology and toughness values. As a result, the fracture toughness value is higher in hard chrome plated parts.
引用
收藏
页码：926 / 929
页数：4
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