The effect of cryogenic burnishing on the formation mechanism of corrosion product film of Ti-6A1-4V titanium alloy in 0.9% NaCl solution

被引：24

作者：

Tang, Jun ^{[1
,2
,3
]}

Luo, Hongyun ^{[1
,2
,3
]}

Qi, Yameng ^{[4
]}

Xu, Pingwei ^{[1
,2
,3
]}

Ma, Sha ^{[1
,2
,3
]}

Zhang, Zheng ^{[1
,2
,3
]}

Ma, Yue ^{[1
]}

机构：

[1] Beijing Univ Aeronaut & Astronaut, Sch Mat Sci & Engn, Minist Educ, Key Lab Aerosp Mat & Performance, Beijing, Peoples R China

[2] Beijing Univ Aeronaut & Astronaut, Collaborat Innovat Ctr Adv Aeroengine CICAAE, Beijing, Peoples R China

[3] Beijing Univ Aeronaut & Astronaut, Beijing Key Lab Adv Nucl Mat & Phys, Beijing, Peoples R China

[4] Baoshan Iron & Steel Co, Baosteel Res Inst, Shanghai, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2018年 / 345卷

基金：

中国国家自然科学基金;

关键词：

Titanium alloy; Cryogenic burnishing; Surface; Corrosion product films; XPS; TEM; PASSIVE FILMS; ALUMINUM-ALLOY; GRAIN-SIZE; BEHAVIOR; SURFACE; 304-STAINLESS-STEEL; XPS; RESISTANCE; NICKEL; PHASE;

D O I：

10.1016/j.surfcoat.2018.03.102

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Effect of cryogenic burnishing on the corrosion product film formation mechanism of Ti-6A1-4V titanium alloy has been investigated in this work. The corrosion product films of both burnished and unburnished specimens exhibited three distinct oxide layers. Compared with un-burnished specimens, burnished specimens possessed a thicker subsurface layer with high-valent oxides and additional Al2O3 in the inner layer. The chemical activity, diffusion, and distribution of alloy elements were changed by high-density dislocations, nano-grains, twins and compressive residual stress induced by cryogenic burnishing, resulting in the enhancement of the compactness, thickness, growth rate and protection of corrosion product film on the Ti-6A1-4V alloy.

引用

页码：123 / 131

页数：9

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