Microstructure-dependent corrosion fatigue crack growth behavior of Ti-6Al-4V alloy in simulated body fluid

被引：7
作者：
Zhao, Xiaotong [1 ]
Song, Xiu [1 ,2 ]
Wang, Ran [1 ]
Wang, Lei [1 ,2 ]
Liu, Yang [1 ]
Hu, Jiali [1 ]
机构：
[1] Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China
[2] Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China
来源：
ENGINEERING FAILURE ANALYSIS | 2023年 / 148卷
关键词：
Ti-6Al-4V; Microstructure; Fatigue crack growth rate (FCGR); Simulated body fluid (SBF); Direct current potential drop (DCPD); TITANIUM-ALLOYS; PROPAGATION; AIR; MECHANISMS; SEAWATER; METALS; PATH;
D O I：
10.1016/j.engfailanal.2023.107184
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The fatigue crack growth rate (FCGR) of Ti-6Al-4V alloys in simulated body fluid (SBF) was first determined by direct current potential drop (DCPD) method. The results show that the acceler-ation effect of SBF corrosion environment on FCGR of lamellar structure is far greater than that of equiaxed and bimodal structures, especially in Paris region, which is mainly due to the high corrosion sensitivity of the lamellar alpha/beta phase boundary to SBF under fatigue loading.
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页数：14
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