Referring to article names in text
After research your question, it appears from multiple universities that the proper way to reference a source in text with ACM format is: 


  So we see that Smith [1990] ...


Therefore you should not need to reference the actual article name. 

https://biblioteca.info.unlp.edu.ar/uploads/docs/guia_acm1.pdf
https://www.cs.ucy.ac.cy/~chryssis/specs/ACM-refguide.pdf
https://www.library.unh.edu/research-support/citation-styles/acm-style