학술논문
Comparison of Stress Corrosion Cracking Susceptibility of Laser Machined and Milled 304 L Stainless Steel
Document Type
Academic Journal
Author
Source
Lasers in Manufacturing and Materials Processing. December, 2016, Vol. 3 Issue 4, p191, 13 p.
Subject
Language
English
Abstract
Machining of austenitic stainless steel components is known to introduce significant enhancement in their susceptibility to stress corrosion cracking. The paper compares stress corrosion cracking susceptibility of laser machined 304 L stainless steel specimens with conventionally milled counterpart in chloride environment. With respect to conventionally milled specimens, laser machined specimens displayed more than 12 times longer crack initiation time in accelerated stress corrosion cracking test in boiling magnesium chloride as per ASTM G36. Reduced stress corrosion cracking susceptibility of laser machined surface is attributed to its predominantly ferritic duplex microstructure in which anodic ferrite phase was under compressive stress with respect to cathodic austenite.
Author(s): R. K. Gupta [sup.1], Aniruddha Kumar [sup.2], D. C. Nagpure [sup.1], S. K. Rai [sup.1], M. K. Singh [sup.1], Ajay Khooha [sup.1], A. K. Singh [sup.1], Amrendra Singh [sup.1], [...]
Author(s): R. K. Gupta [sup.1], Aniruddha Kumar [sup.2], D. C. Nagpure [sup.1], S. K. Rai [sup.1], M. K. Singh [sup.1], Ajay Khooha [sup.1], A. K. Singh [sup.1], Amrendra Singh [sup.1], [...]