100920_on_PM+Ceramics

100920_on_PM+Ceramics - from...

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Figure 2 Orig. ~12X Close-up view of a typical gear tooth, revealing a coarse surface, with discrepancies such as linear scribe marks along the upper profile, and a small indentation at the tooth ends. Figure 1 Orig. ~5X Overview of P/M planet gear, fabricated by Western Sintering, which exhibited a relatively coarse surface. Figure 3 100X Typical unetched cross- section of the planet gear revealing good particle bonding, with void content estimated at ~10%. (Some voids were also exposed to the surface, resulting in the texture shown in the previous photo.)
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400X Closer view of an unetched cross-section, revealing generally rounded pores. Figure 5 100X View of etched cross- section, revealing some areas of white or light etching, presumed to be nickel-rich areas. Primarily martensitic structure, with some presence of bainite. Figure 6
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100920_on_PM+Ceramics - from...

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