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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The microstructure (before and after quenching), phase (before quenching), carbide content and hardness were studied by scanning electron microscopy, X-ray diffraction, optical software and Rockwell hardness tester. The results indicate that carbides of Cr5 steel have different morphology features and obvious aggregation phenomenon, most carbides dissolve in the matrix after quenching, the carbides of not dissolving with small particles distribute in the martensite. The style of carbides before quenching have M7C3、M23C6 and M3C2. volume fraction of carbides gradually reduce with quenching temperature increase, and the temperature of carbides dissolving in the matrix is 970C. Cr5 steel hardness increases and later decreases with the quenching temperature increases, the peak hardness (54HRC) is achieved in the 970C.

Influence of Quenching Temperature on Microstructure and Properties of Cr5 steel