scholarly journals Acoustic Emission Properties of Corrosion Pitting in SUS304 Stainless Steel during MgCl2 Droplet Corrosion Testing

2010 ◽  
Vol 74 (9) ◽  
pp. 559-564 ◽  
Author(s):  
Mitsuharu Shiwa ◽  
Kaita Ito ◽  
Hiroyuki Masuda ◽  
Hisashi Yamawaki ◽  
Yoshitaka Adachi ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Acoustic Emission ◽  
Corrosion Testing ◽  
Emission Properties ◽  
Sus304 Stainless Steel ◽  
Corrosion Pitting

In-Situ Observation and Acoustic Emission Analysis for Corrosion Pitting of MgCl2 Droplet in SUS304 Stainless Steel

2012 ◽  
Vol 53 (6) ◽  
pp. 1069-1074 ◽  
Author(s):  
Mitsuharu Shiwa ◽  
Hiroyuki Masuda ◽  
Hisashi Yamawaki ◽  
Kaita Ito ◽  
Manabu Enoki
Keyword(s):  
Stainless Steel ◽  
Acoustic Emission ◽  
Emission Analysis ◽  
Sus304 Stainless Steel ◽  
Corrosion Pitting ◽  
Acoustic Emission Analysis

scholarly journals In-Situ Observation and Acoustic Emission Analysis for SCC of MgCl2 Droplet in SUS304 Stainless Steel

2014 ◽  
Vol 55 (2) ◽  
pp. 285-289 ◽  
Author(s):  
Mitsuharu Shiwa ◽  
Hiroyuki Masuda ◽  
Hisashi Yamawaki ◽  
Kaita Ito ◽  
Manabu Enoki
Keyword(s):  
Stainless Steel ◽  
Acoustic Emission ◽  
Emission Analysis ◽  
Sus304 Stainless Steel ◽  
Acoustic Emission Analysis

Microstructure characterization and corrosion testing of MAG pulsed duplex stainless steel welds

2017 ◽  
Vol 59 (7-8) ◽  
pp. 642-646 ◽  
Author(s):  
Ion Mitelea ◽  
Ion Dragoş Uţu ◽  
Sorin Dumitru Urlan ◽  
Olimpiu Karancsi
Keyword(s):  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Microstructure Characterization ◽  
Corrosion Testing ◽  
Steel Welds

CARPENTER 7-Mo PLUS

Alloy Digest ◽  
1995 ◽  
Vol 44 (9) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Stress Corrosion Cracking ◽  
Stainless Steels ◽  
Heat Exchangers ◽  
Heat Treating ◽  
Ferrite Matrix ◽  
Corrosion Pitting ◽  
Petrochemical Industries

Abstract CARPENTER 7-Mo PLUS is a duplex stainless steel of austenite in a ferrite matrix. It is superior to 300 series stainless steels like types 304 and 316 in strength, corrosion, pitting and stress-corrosion cracking resistance (to chlorides). Typical applications are heat exchangers in the chemical and petrochemical industries. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-608. Producer or source: Carpenter.

scholarly journals Analysis of Acoustic Emission (AE) Signals for Quality Monitoring of Laser Lap Microwelding

2021 ◽  
Vol 11 (15) ◽  
pp. 7045
Author(s):  
Ming-Chyuan Lu ◽  
Shean-Juinn Chiou ◽  
Bo-Si Kuo ◽  
Ming-Zong Chen
Keyword(s):  
Stainless Steel ◽  
Acoustic Emission ◽  
Frequency Domain ◽  
Monitoring System ◽  
Welding Quality ◽  
Steel Sheets ◽  
Signal Features ◽  
Ae Signal ◽  
Laser Microwelding ◽  
Ae Signals

In this study, the correlation between welding quality and features of acoustic emission (AE) signals collected during laser microwelding of stainless-steel sheets was analyzed. The performance of selected AE features for detecting low joint bonding strength was tested using a developed monitoring system. To obtain the AE signal for analysis and develop the monitoring system, lap welding experiments were conducted on a laser microwelding platform with an attached AE sensor. A gap between the two layers of stainless-steel sheets was simulated using clamp force, a pressing bar, and a thin piece of paper. After the collection of raw signals from the AE sensor, the correlations of welding quality with the time and frequency domain features of the AE signals were analyzed by segmenting the signals into ten 1 ms intervals. After selection of appropriate AE signal features based on a scatter index, a hidden Markov model (HMM) classifier was employed to evaluate the performance of the selected features. Three AE signal features, namely the root mean square (RMS) of the AE signal, gradient of the first 1 ms of AE signals, and 300 kHz frequency feature, were closely related to the quality variation caused by the gap between the two layers of stainless-steel sheets. Classification accuracy of 100% was obtained using the HMM classifier with the gradient of the signal from the first 1 ms interval and with the combination of the 300 kHz frequency domain signal and the RMS of the signal from the first 1 ms interval.

Crack healing in SUS304 stainless steel by electropulsing treatment

2016 ◽  
Vol 113 ◽  
pp. 989-994 ◽  
Author(s):  
Tao Yu ◽  
Dewei Deng ◽  
Gang Wang ◽  
Hongchao Zhang
Keyword(s):  
Stainless Steel ◽  
Crack Healing ◽  
Sus304 Stainless Steel ◽  
Electropulsing Treatment

scholarly journals Static strength of friction welded joint of 6061 aluminum alloy to SUS304 stainless steel.

1996 ◽  
Vol 46 (10) ◽  
pp. 500-504 ◽  
Author(s):  
Hiizu OCHI ◽  
Koichi OGAWA ◽  
Yoshiaki YAMAMOTO ◽  
Shigeki HASHINAGA ◽  
Yasuo SUGA ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Aluminum Alloy ◽  
Welded Joint ◽  
Static Strength ◽  
6061 Aluminum Alloy ◽  
Sus304 Stainless Steel
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