Effect of Post Weld Heat Treatment on Mechanical Properties of 17-4-PH Stainless Steel Welds

A. Sam Prabhakar; M. Agilan; T. Venkateswaran; D. Sivakumar; P.G. Venkatakrishnan

doi:10.4028/www.scientific.net/MSF.830-831.181

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HomeMaterials Science ForumMaterials Science Forum Vols. 830-831Effect of Post Weld Heat Treatment on Mechanical...

Effect of Post Weld Heat Treatment on Mechanical Properties of 17-4-PH Stainless Steel Welds

Abstract:

Precipitation hardening stainless steel (17-4-PH) of 3 mm thick sheet was welded by gas tungsten arc welding (GTAW) process using a matching composition filler wire of ER 630. The welds were subjected to various post weld heat treatment (PWHT) cycles viz., H900, H1025 and H1150. Tensile properties (UTS, 0.2% YS, and % EL.), hardness survey across the weld and detailed optical microscopy have been carried-out on as-welded and after different PWHT conditions samples. Results showed that H900 heat treatment condition attained higher mechanical properties than H1025 and H1150.

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Periodical:

Materials Science Forum (Volumes 830-831)

Pages:

181-184

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.830-831.181

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Online since:

September 2015

Authors:

A. Sam Prabhakar*, M. Agilan, T. Venkateswaran, D. Sivakumar, P.G. Venkatakrishnan

Keywords:

17-4-pH Stainless Steel, Gas Tungsten Arc Welding, Post-Weld Heat Treatment

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References

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DOI: 10.1520/a0693-03

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