Effect of Pre-and-Post heat and Heat inputs on Micro alloyed Steel

Effect of Pre-and-Post heat and Heat inputs on Micro alloyed Steel


Marketed By :  Scholars' Press   Sold By :  Kamal Books International  
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  • Product Description

The effects of preheating, post weld heating and arc welding parameters on the microstructures and mechanical properties of SAILMA 300 HI steel welds in comparison to normal welds were experimentally determined. The results show that when preheating and/or Post Weld heat temperature increases the yield strength, ultimate tensile strength, and hardness of welds slightly decreases, on the other hand percentage elongation, percentage reduction in area and toughness increases as compared to normal welds.The combined condition of pre- and post- heating of welds showed best improvement in toughness. The effect of heat inputs (function of current, voltage and travel speed) on mechanical properties also show same pattern as preheating.Micro structure studies reveal that when preheating and post heating temperatures and heat inputs are increased, tempering of brittle phases and grain coarsening occurs, as compared to normal welds.This combination provides maximum volume fraction of acicular ferrite in welds which is desirable because it provided a good toughness and tensile strength to the welds.

Product Specifications
SKU :COC62421
Country of ManufactureIndia
Product BrandScholars' Press
Product Packaging InfoBox
In The Box1 Piece
Product First Available On ClickOnCare.com2015-08-05
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