Abstract
The structure and composition of a titanium carbo-nitrogen sulphide in steels have been determined by means of X-ray diffraction, electron diffraction and electron-probe microanalysis.
The carbo-nitrogen sulphide has a structure similar to that of TiP with a dimension of hexagonal unit cell of α=3.210Å, c= 11.20Å, and c/a= 3.49. Its chemical formula is shown by Ti4 (Cm, Nn) 2S2, where m+n= 1. The ratio of m to n depends on the chemical composition, solidification condition and thermal history of steels.
The carbo-nitrogen sulphide is chemically stable as to be extracted from various steels containing titanium by mineral acid-dissolution and electrolytic methods using these acids, but decomposes gradually in hot mineral acids and oxidizing reagents.
