Corrosion behavior of additive manufactured Ti-6Al-4V in sulfamic acid cleaning solution,New Journal of Chemistry

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Corrosion behavior of additive manufactured Ti-6Al-4V in sulfamic acid cleaning solution
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2021-1-11 , DOI: 10.1039/d0nj05731b
Wenbin Qiu _{1,

2,

3,

4,

5} , Yongqiang Wei _{5,

6,

7} , Aijun Chen _{1,

2,

3,

4,

5} , Hao Deng _{1,

2,

3,

4,

5} , Lvjun Zhou _{1,

2,

3,

4,

5} , Hanyang Zuo _{1,

2,

3,

4,

5} , Longqing Chen _{1,

2,

3,

4,

5} , Zuxi Xia _{5,

6,

7} , Hui Wang _{8,

9,

10,

11} , Jun Tang _{1,

2,

3,

4,

5}

Affiliation

In the current work, the corrosion behaviors of Ti-6Al-4V alloys manufactured using spark plasma sintering (SPS), selective laser melting (SLM) and electron beam melting (EBM) techniques are comparably investigated using aircraft deicer (10% sulfamic acid cleaning solution, 10-SACS). The corrosion resistance of different Ti-6Al-4V samples is mainly characterized using electrochemical measurements and immersion tests. The traditional SPS Ti-6Al-4V alloy has a stronger corrosion resistance compared to the SLM Ti-6Al-4V alloy, and the one manufactured using the EBM technique is the most vulnerable among all samples tested. Based on the X-ray diffraction (XRD) measurements, the β-phase constitution fraction of SPS Ti-6Al-4V is 11.8%, while those of SLM and EBM Ti-6Al-4V alloys are 5.3% and 2.6%, respectively. The corrosion resistance of Ti-6Al-4V alloys against 10-SACS is found to be positively correlated to the β phase composition. In addition, a high density of coarse grain boundaries is also partially beneficial in improving the corrosion resistance in the SPS sample. This work paves a way for the practical application of additive manufactured Ti-6Al-4V alloys to be used in harsh environments.

中文翻译：

添加剂制造的Ti-6Al-4V在氨基磺酸清洗液中的腐蚀行为

在当前工作中，使用飞机除冰剂（10％氨基磺酸清洗）对使用火花等离子体烧结（SPS），选择性激光熔化（SLM）和电子束熔化（EBM）技术制造的Ti-6Al-4V合金的腐蚀行为进行了比较研究。解决方案，10-SACS）。不同Ti-6Al-4V样品的耐腐蚀性主要通过电化学测量和浸没测试来表征。与SLM Ti-6Al-4V合金相比，传统的SPS Ti-6Al-4V合金具有更强的耐腐蚀性，并且使用EBM技术制造的一种合金在所有测试样品中最脆弱。根据X射线衍射（XRD）测量，SPS Ti-6Al-4V的β相组成分数为11.8％，而SLM和EBM Ti-6Al-4V合金的β相组成分数分别为5.3％和2.6％。发现Ti-6Al-4V合金对10-SACS的耐腐蚀性与β相组成呈正相关。另外，高密度的粗晶界还部分有益于改善SPS样品的耐腐蚀性。这项工作为在恶劣环境下使用增材制造的Ti-6Al-4V合金的实际应用铺平了道路。

更新日期：2021-01-11

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