This work presents aspects related to new sintered materials for valve seat inserts
application. Two types of materials were evaluated. The materials were made using powder …

The conventional copper infiltrated high speed steel (HSS) valve seats used in gasoline
engines are not suitable for CNG combustion because the exhaust gas temperature is at …

The powder metallurgy (PM) technique is suitable for mass production and is a well-
established process for the low production costs of net-shaped products close to long series …

Quenched and tempered high-speed steels obtained by powder metallurgy are commonly
used in automotive components, such as valve seats of combustion engines. In order to …

O objetivo deste trabalho foi desenvolver potenciais materiais para aplicações automotivas,
em particular como insertos para assento de válvula em motores de combustão interna à …

RESUMO O objetivo deste trabalho foi propor potenciais materiais para utilização na
indústria automotiva, mais especificamente ligas metálicas aplicadas na produção de …

This article shows some fabrication aspects related to the obtention of sintered valve seat
insert. The insert was made of a mixture of high-speed steel powders and iron powders. The …

This work presents aspects related to research and development of high-speed steels for
valve seat inserts application. Five series of materials were evaluated: high speed steel …