Welding metallurgy base metal& filler metal.

Welding metallurgy base metal& filler metal.

Filler metals play an important role in reducing the weld cracking in nickel-based superalloys. In order to improve the welding conditions of IN939 superalloy, a wide range of solid solutions and age-hardenable filler metals were investigated in this study. Five solid solutions (HAYNES 230, IN625, IN617, HASTELLOY X, HAYNES 25) and two precipitation-strengthened alloys (IN718, HAYNES C-263) were used as filler metal to weld IN939 superalloy via gas-tungsten-arc welding. Microstructural studies were performed using optical microscopy and field-emission scanning electron microscopy. The results revealed that IN939 alloy is susceptible to liquation cracking in the heat-affected zone. In addition, the primary γ′ particles had grown into “ogdoadically diced cubes” of about of 2 μm in side length

SHARE :

Similar Products

ISO 45001 Internal Auditor

icon ISO 45001 Internal Auditor

This course provides delegates with the knowledge and skills required to perform an internal...

Read More
ISO 14001 Internal Auditor

icon ISO 14001 Internal Auditor

Internal audits are your own checks against your business activities to make sure that they align...

Read More
ISO 9001  Internal Auditor

icon ISO 9001 Internal Auditor

SO 9001 is a globally recognized Quality Management System (QMS) standard published and...

Read More
filler metal selection guide in excel

icon filler metal selection guide in excel

Selecting Filler Metals for Dissimilar Alloy Welding. Have you ever wondered what is the best...

Read More