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 effects of cryogenic treatments on an AISI D2 cold work tool steel using X-ray diffraction from syncronton\udradiation are studied. The aim of this work is to verify the effects of: i) time at cryogenic temperatures (3, 10 and 30 hours);\udii) cryogenic temperatures (–80°C and –196°C); iii) stress relief heat treatment (130°C) before cryogenic treatments;\udiv) effect of double tempering at 520°C for 2 hours each time, after cryogenic treatment at –196°C for 30 hours, with and\udwithout previous stress relief. X-ray diffraction experiments were conducted at the line D10B-XPD of the Laboratório\udNacional de Luz Síncrotron and the experimental results were treated using Rietveld refining, with TOPAS Academic\udin conjunction with cards from the ICCD-PDF 2006 database for austenite, martensite and carbides M7C3and M2C.\udTempered samples were characterized using SEM and SEM-FEG. Volume fraction of retained austenite and carbides, as\udwell as changes in the crystal lattices of martensite and austenite are obtained from the X-ray experiments

TRATAMENTO CRIOGÊNICO E DE ALÍVIO DE TENSÕES EM UM AÇO AISI D2