Joint strength of Inconel 718 alloy and its improvement by post-weld heat treatment – joint performance and its controlling factors in friction welding of Inconel 718 alloy

2009 ◽  
Vol 23 (9) ◽  
pp. 679-686 ◽  
Author(s):  
Hongjie Wang ◽  
Kenji Ikeuchi ◽  
Masatoshi Aritoshi ◽  
Makoto Takahashi ◽  
Akio Ikeda
Keyword(s):  
Heat Treatment ◽  
Friction Welding ◽  
Inconel 718 ◽  
Joint Strength ◽  
Controlling Factors ◽  
Post Weld Heat Treatment ◽  
Inconel 718 Alloy ◽  
Joint Performance ◽  
Weld Heat

scholarly journals Joint Strength of Friction-welded Inconel 718 Alloy and its Improvement by Post Weld Heat Treatment

2008 ◽  
Vol 26 (2) ◽  
pp. 167-173 ◽  
Author(s):  
Hongjie WANG ◽  
Kenji IKEUCHI ◽  
Masatoshi ARITOSHI ◽  
Makoto TAKAHASHI ◽  
Akio IKEDA
Keyword(s):  
Heat Treatment ◽  
Inconel 718 ◽  
Joint Strength ◽  
Post Weld Heat Treatment ◽  
Inconel 718 Alloy ◽  
Weld Heat

The Effect of Post Weld Heat Treatment on Mechanical Properties of Friction-Welded Alloy 718 and SNCRW Stainless Steel

2007 ◽  
Vol 26-28 ◽  
pp. 511-514 ◽  
Author(s):  
Nam Yong Kim ◽  
Jeoung Han Kim ◽  
Yu Sik Kong ◽  
Jong Won Yoon ◽  
Jong Taek Yeom ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Weld Joint ◽  
Friction Welding ◽  
Rotation Speed ◽  
Post Weld Heat Treatment ◽  
Alloy 718 ◽  
Temperature Range ◽  
Heat Treated ◽  
Weld Heat

The effect of post weld heat treatment on mechanical properties of friction welded Alloy 718 and SNCRW was investigated. Friction welding tests were carried out at a constant rotation speed and pressure. Optimum friction condition was found to be the friction pressure of 25kg/cm2, friction time of 40sec, upset pressure of 80 kg/cm2, and dwell time of 5sec. After friction welding tests, post weld heat treatments were performed in the temperature range of 500-900°C for 8hrs in order to investigate the microstructure and mechanical properties of weld joint. Specimens with the post weld heat treatment at 720°C for 8hrs show optimal mechanical properties. Residual stress of post weld heat treated specimens was measured to weld joint in the same temperature range. After friction welding tests on samples with a diameter of 80mm, tensile properties of post-weld-heat-treated and non-heat-treated samples were compared.

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