Acid Pickling Process of Titanium alloys and its Investigation of intergranular corrosion and Pitting corrosion

DOI

10.2991/icmse-15.2015.300How to use a DOI?

Keywords

Acid Pickling Process; Titanium alloys; Intergranular corrosion; Pitting corrosion

Abstract

Before fluorescence detection of Titanium alloy components, acid pickling in HF-HNO3 solutions is always required in order to remove the superficial oxides of the components. According to the relative CPS document, the conditions for Titanium alloy pickling are HF arranged below 90g/L, HNO3 300-450g/L and at ambient temperature. In this paper, the corrosion rate of the acid pickling process of TC4 alloy was investigated using the acid solutions with variable HF Titanium contents and fixed HNO3 content of 375g/L at different temperatures. In addition, the intergranular corrosion and pitting corrosion of the TC4 alloys after pickling under different conditions were conducted. The effects of HF and HNO3 on the intergranular corrosion and pitting corrosion were discussed.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Limei You
AU  - Dongqiang Peng
AU  - Linyan Zhou
AU  - Feng Li
AU  - Canfeng Zhao
AU  - Chunxia Wang
AU  - Changjie Feng
PY  - 2015/12
DA  - 2015/12
TI  - Acid Pickling Process of Titanium alloys and its Investigation of intergranular corrosion and Pitting corrosion
BT  - Proceedings of the 2015 6th International Conference on Manufacturing Science and Engineering
PB  - Atlantis Press
SP  - 1652
EP  - 1656
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmse-15.2015.300
DO  - 10.2991/icmse-15.2015.300
ID  - You2015/12
ER  -