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.
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According to expectation theory, a person's efforts at work result in a certain degree of performance.
<h3>What is the degree of performance?</h3>
Degree of performance means when in a workplace there will be some kind of ranking or voting will be done based on the review of a group of people.
This is made for the person to appreciate the work they have done and also mark some important parts of changes that need to be made.
According to expectancy theory, people are more driven to work hard if they believe their efforts will be noticed and acknowledged. Also, some rewards will also be there with which the company and the person both benefit.
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That they contain stuff that is vewry:
Very not
Very much
Very is
A very not is the thing
