improvement of mechanical properties and hot cracking susceptibility of 304 stainless steel weld joints with the simultaneous electromagnetic vibration application

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ghadam dezfuli amin; ALAVI ZAREE SEYED REZA; DEHMOLAEI REZA

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Journal Paper

Paper Information

Journal: JOURNAL OF NEW MATERIALS Year:2018 | Volume:9 | Issue:1 (33) Page(s): 137-148

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Title

improvement of mechanical properties and hot cracking susceptibility of 304 stainless steel weld joints with the simultaneous electromagnetic vibration application

Author(s)

ghadam dezfuli amin | ALAVI ZAREE SEYED REZA | DEHMOLAEI REZA | Issue Writer Certificate

Keywords

electromagnetic vibrationQ1

DendritesQ1

hot crackingQ1

Varstraint testQ1

Austenitic stainless steelQ2

Abstract

The aim of this research was to study the effect of simultaneous vibration application during welding under the voltage range of 0-30 volts on the mechanical properties and hot cracking susceptibility of 304 stainless steel welded joints. The microstructural investigations by optical and scanning electron microscopes showed that electromagnetic vibration application resulted in fragmentation of dendrite tips, increasing of nucleation sites and alteration of solidification structure from columnar to equiaxed structure. Therefore, the final microstructure undergoes grain refinement and extension of equiaxed dendriteic region. Hardness measurement of welded region showed increasing value due to vibration application. The results of Charpy test done on welded specimens revealed that impact energy has been increased from 112 J to 136 j under different electromagnetic vibration intensities. It was also determined that under electromagnetic vibration, weldability was improved, hot cracking susceptibility was decreased and fracture toughness of welded joints under electromagnetic vibration was increased.

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APA: Copy

ghadam dezfuli, amin, ALAVI ZAREE, SEYED REZA, & DEHMOLAEI, REZA. (2018). improvement of mechanical properties and hot cracking susceptibility of 304 stainless steel weld joints with the simultaneous electromagnetic vibration application. JOURNAL OF NEW MATERIALS, 9(1 (33) ), 137-148. SID. https://sid.ir/paper/169783/en

Vancouver: Copy

ghadam dezfuli amin, ALAVI ZAREE SEYED REZA, DEHMOLAEI REZA. improvement of mechanical properties and hot cracking susceptibility of 304 stainless steel weld joints with the simultaneous electromagnetic vibration application. JOURNAL OF NEW MATERIALS[Internet]. 2018;9(1 (33) ):137-148. Available from: https://sid.ir/paper/169783/en

IEEE: Copy

amin ghadam dezfuli, SEYED REZA ALAVI ZAREE, and REZA DEHMOLAEI, “improvement of mechanical properties and hot cracking susceptibility of 304 stainless steel weld joints with the simultaneous electromagnetic vibration application,” JOURNAL OF NEW MATERIALS, vol. 9, no. 1 (33) , pp. 137–148, 2018, [Online]. Available: https://sid.ir/paper/169783/en

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