English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Carburising followed by martensitic hardening is state of the art in the gear industry today. Carburisation followed by isothermal transformation into a partial or fully bainitic microstructure has not been systematically examined and evaluated yet. Especially isothermal transformation of carburised parts into lower bainite is promising in terms of the characteristic mechanical values of treated parts, due to the increased toughness of the bainite compared to a carbon rich martensite and finely distributed retained austenite. Using this procedure for case hardening requires a quenching technology for isothermal bainitic transformation and additional changes to the process. Examinations of the transformation characteristics of carburised samples in the dilatometer were discussed in the first part of the publication already. This second part examines the microstructures and residual stresses caused by “bainitic case hardening”. The 3 rd  part will follow in HTM 1/2019.

htm journal of heat treatment and materials

Surface Layer Microstructure of Carburised and Bainitically Transformed Parts and their Mechanical Properties *: Part 2: Examination of the Microstructure and Internal Stress of Carbon Graded Samples