Porosity is a cavity-like discontinuity and occurs due to the entrapment of gases in the molten weld pool. These entrapped gases don't get a chance to escape from the molten weld pool and hence cause porosity.
<h3>Which discontinuities are caused during welding?</h3>
Weld discontinuities can be defined as "an interruption of the typical structure of a weld, such as a lack of homogeneity in the mechanical, metallurgical or physical characteristics of the weld." Porosity is considered to be the most critical discontinuity. Weld discontinuities include porosity, incomplete fusion, excessive melt.
To learn more about welding visit the link
brainly.com/question/19997700
#SPJ4
Answer:
there is many solutions to this question one of them is to work to cure and research a disease like cancer because that can help bring our country together and save lives.
Explanation:
It will be fewer clothes at each price level
Answer: . Olivia (a 15-month-old girl) looks at her mother before she smiles at an unfamiliar woman
Explanation:
Example of Social referencing. a child sees a fearful expression on his mother's face as he reaches to touch something, he will be less likely to touch it.
