1. Environmental aspects of lead-free freemachining steels production;Ryabov;Materials Science Forum,2016
2. Leadfree free-cutting steels as modern environmentally friendly materials;Živković;Ecologica,2011
3. Development of environment-friendly containing Bi low-carbon high-sulfur freecutting steel;Zhang;Special Steel,2009
4. Development of free cutting steel for machine structure without lead;Zhang;Materials Reports,2009
5. Effect of bismuth element with low melting point on embrittlement behavior of steel;Liu;Iron and Steel,2020