| Title |
Effect of Alloying Elements on Elevated Temperature Tensile Ductility of Bi-Added, Pb-Free Brass |
| Authors |
장영환(Y. H. Jang); 김상식(S. S. Kim); 김인상(I. S. Kim); 한승전(S. Z. Han) |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
Bi-added; Pb-free brass; P; Ms; Elevated temperature tensile ductility |
| Abstract |
In the present study, the effects of P and/or Misch metal (Ms) on the microstructure and high temperature tensile behavior of Bi-added, Pb-free brass were examined. It was found that the tensile ductility of Bi-added. Pb-free brass decreased significantly at 300℃. The addition of P and/or Ms, on the other hand, greatly improved elevated temperature tensile ductility of the present alloy. The microstructural observation demonstrated that the formation of Bi film along the α-β, phase boundary. which is the main cause for the low tensile ductility at elevated temperature, was substantially reduced with the addition of P and/or Ms. The retarded Bi film formation was believed to be due to the thermally stable Bi-related compounds formed in Bi-added, Pb-free brass. (Received April 8, 2004) |