1 Erratum to: Nano Convergence (2017) 4:16 DOI 10.1186/s40580-017-0110-5

After publication of the original article [1], the authors noticed one error with the following sentence in “Conclusion” section:

  1. “3.

    The increment in yield strength due to precipitation strengthening in 1.65Cu steel is 158 MPa.”

“1.65Cu” should be corrected to “1.7Cu”.

The original article has been updated.