desenvolvimento da ferrita delta na solda e zta resultante de soldagem plasma pulsada em um aço inoxidável supermartensítico delta-ferrite development in weld and haz produced by pulsed plasma arc welding in a supermartensitic stainless steel

Clicks: 233
ID: 179540
2013
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Popular

Ranked #39 of 225 articles by views in Journal of applied microbiology

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 225 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
A ferrita delta é considerada uma fase indesejável na microestrutura dos aços inoxidáveis martensíticos haja vista a mesma poder influenciar no desempenho da resistência à fadiga, tenacidade e corrosão sob-tensão. Sendo assim, o objetivo deste trabalho foi investigar o efeito da soldagem plasma pulsada sobre a distribuição e quantidade de ferrita delta em um aço inoxidável supermartensítico. Para tal foram obtidos cordões por meio de fusão superficial sobre uma amostra de aço inoxidável supermartensítico de alta liga utilizando corrente pulsada e convencional. Em seguida foi efetuada a caracterização microestrutural, em especial da ferrita delta, via análises metalográficas por meio de microscopia óptica e eletrônica de varredura . Os experimentos revelaram que, para o mesmo aporte térmico, a pulsação de corrente promoveu a formação de ferrita delta na forma de bandas ao longo do cordão de solda e redução significativa desta fase na ZTA quando comparada à soldagem convencional.
The objective of this study was to investigate the effect of pulsed plasma welding on the distribution and amount of delta ferrite which is considered an undesirable phase in a supermartensitic stainless steel. For such weld beads have been obtained by melting the surface of a sample of a high-alloy supermartensitic stainless steel using pulsed and conventional current. Microstructural characterization, especially of delta ferrite, was performed by metallographic analysis by means of optical microscopy and scanning electron microscopy. The experiments showed that for the same heat input, pulsed current promoted the formation of delta ferrite in the form of bands along the weld bead and caused a significant reduction of this phase in HAZ as compared to conventional welding.
Reference Key
henke2013soldagemdesenvolvimento Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Sérgio L. Henke, Ramon S. C. Paredes, André R. Capra
Are you one of these authors? Claim your profile
Journal Journal of applied microbiology
Year 2013
DOI
DOI not found
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-92242013000100008
Keywords
pulsed weldingtechnologytechnology (general)

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.