09299 Residual Stress Control for Prevention of Environmental Cracking of Stainless Steels

Available for download

Product Number: 51300-09299-SG

ISBN: 09299 2009 CP

Author: Dale McIntyre, Sudhakar P. Mahajanam and Larry K. Hovey

Publication Date: 2009

Industry: Materials Selection and Design

Member Price: $0.00

Non Member Price: $20.00

Price: $20.00

Qty:

Requirements for residual stress control to prevent anodic stress-corrosion cracking and hydrogeninduced sulfide stress cracking may significantly affect the delivery/lead time and materials selection for heat exchangers. This study reports microhardness, residual stress and environmental cracking test results for duplex stainless steels and austenitic stainless steels with residual stresses from heat exchanger fabrication operations including high surface area tube forming and hair-pin bend formation. The ASTM E837, ASTM G36 and NACE TM0177 methods are used to judge the risk of the asfabricated conditions and the efficacy of residual stress control measures including solution annealing, stabilizing heat treatments, resistance-heating stress relief and the imposition of residual compressive stress fields. Alloys tested include the austenitic AISI types 304, 316, 321 and duplex type 2205.

Keywords: Heat exchangers, austenitic stainless steel, duplex stainless steel, residual stress, environmentally assisted cracking