Ancorloy 2 and Ancorloy 4

Ancorloy 2 and Ancorloy 4 Technical Publications

134. Ancorloy Hardenability The Continuous Sinter Cooling Transformation diagrams of five proprietary admix compositions including Ancorloy^® 2 and Ancorloy^® 4 at sintered carbon contents of 0.50 w/o and Ancorloy^®MDB, Ancorloy^® MDC and Ancorloy^® MDCL at sintered carbon contents of 0.60 w/o are presented for sintered densities in the neighborhood of 7.10 g/cm³.

103. The Development of Engineered Binder-Treated Alternatives to Duffusion-Alloyed Powders Engineered binder-treated premixes have been developed as alternatives to diffusion alloyed powders. The binder-treated materials meet the chemical composition limits for the diffusion alloyed materials listed in MPIF Standard 35, Materials Standard for P/M Structural Parts.

At an equivalent combined carbon content the binder-treated materials exhibit higher strength than the diffusion alloyed materials. When the combined carbon content of the binder-treated materials is reduced, to provide an equivalent strength level, the binder-treated materials match the tensile ductility and impact energy of the diffusion alloyed products.

The as-sintered and the quench-hardened and tempered performance of the new materials is reviewed and compared with diffusion alloyed materials of similar chemistry. These recently developed materials represent the first in a new family of high performance ferrous P/M materials.

88. Advances in High Performance PM Alloys For Automotive Applications The as-sintered and the sintered and tempered transverse rupture and tensile properties of seven recently developed high performance PM compositions are reviewed. Two are improved versions of the well known diffusion alloyed grades according to MPIF Standard 35. Two others are likewise improved versions of more highly alloyed analogs of the latter that have only recently been introduced. The remaining three are all new compositions that take advantage of the powerful alloying effects of silicon. The silicon is added by a proprietary method that greatly reduces its susceptibility to oxidation during sintering, an effect that has heretofore limited its use.

86. The Development of Binder-Treated Alternatives to Diffusion Alloyed Powders Engineered binder-treated premixes have been developed as alternatives to diffusion-alloyed powders. One family of binder-treated materials meets the chemical composition limits for diffusion-alloyed materials listed in MPIF Standard 35, Materials Standards for P/M Structural Parts. A second family of engineered binder-treated premixes has been developed as an alternative to high performance diffusion-alloyed materials that are based on prealloyed low-alloy steels containing 1.5 weight percent molybdenum. The as-sintered and the quench-hardened and tempered performance of the new materials will be reviewed and compared with diffusion-alloyed materials of similar chemistry.

85. New High Performance P/M Alloy Substitutes for Malleable and Ductile Cast Irons Ferrous P/M alloys generally do not exhibit a good combination of strength, ductility, and impact toughness. A series of new P/M alloy systems has been developed to match the performance characteristics of malleable and ductile cast irons. The new materials maintain excellent tensile ductility at high strength levels while possessing good impact resistance. The performance characteristics and benefits of the new P/M materials will be presented.

83. New High Performance Ferrous P/M Materials for Demanding Automotive Applications Diffusion-alloyed powders have been used for many years in automotive applications such as synchronizer hubs where there is a need for a combination of tensile strength, ductility, and impact energy. Recently, engineered binder-treated premixes have been developed as alternatives to diffusion-alloyed powders including those based on a prealloyed powder (1.5 w/o molybdenum). The engineered binder-treated materials will be compared with their diffusion-alloyed counterparts.

1001 Taylors Lane • Cinnaminson, NJ 08077-2017 • USA • 856-829-2220