Search
Filters

51318-10876-MEANINGFUL TESTS FOR THE QUALITY OF DUPLEX STAINLESS STEELS

Current test regimes and acceptance levels as concerns the strong detrimental influence on toughness and corrosion resistance of intermetallic particles (IMP) in the microstructure of duplex stainless steels.

Product Number: 51318-10876-SG
Author: Dr. Glenn Byrne / A Fajimi / Dr. R Francis / G. Warburton
Publication Date: 2018
Industry: Test Method
$0.00
$20.00
$20.00

The strong detrimental influence on both toughness and corrosion resistance of intermetallic particles (IMP) in the microstructure of duplex stainless steels is well known. Toughness and corrosion testing along with microstructural examination of samples has been used as a collective to determine either “freedom from” or “acceptable” levels of deleterious phases in the microstructure of these steels. However, users of duplex alloys continue to report problems. This paper considers how meaningful current test regimes and acceptance levels are and how they correlate with each other. The value of ferritiscope testing to detect intermetallic particles is also considered. Overall, the paper proposes more meaningful test acceptance levels and procedures along with, supplementary ferritiscope testing to optimise the capability of this group of tests to detect deleterious phases.

 Key words: Duplex, microstructure, intermetallic precipitates, acceptance criteria, ferritiscope testing

The strong detrimental influence on both toughness and corrosion resistance of intermetallic particles (IMP) in the microstructure of duplex stainless steels is well known. Toughness and corrosion testing along with microstructural examination of samples has been used as a collective to determine either “freedom from” or “acceptable” levels of deleterious phases in the microstructure of these steels. However, users of duplex alloys continue to report problems. This paper considers how meaningful current test regimes and acceptance levels are and how they correlate with each other. The value of ferritiscope testing to detect intermetallic particles is also considered. Overall, the paper proposes more meaningful test acceptance levels and procedures along with, supplementary ferritiscope testing to optimise the capability of this group of tests to detect deleterious phases.

 Key words: Duplex, microstructure, intermetallic precipitates, acceptance criteria, ferritiscope testing

Also Purchased
Picture for Quality & Performance Review of Duplex Stainless Steel Products – An End Users Perspective
Available for download

51318-10568-Quality & Performance Review of Duplex Stainless Steel Products – An End Users Perspective

Product Number: 51318-10568-SG
Author: Janardhan Rao Saithala / Gurram Bhaskar Rao / Manoj Suryanarayana / Talal Nebhani / Pedro Rincon / Nasser Behlani / Mohammed Ghafri / Amjad Kharusi
Publication Date: 2018
$20.00