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
Radiation shield
security blanket
weathering the storms
Answer:
Hitler wanted to punish Stalin for breaking the Nazi-Soviet Pact
Answer:
1) Best Management Practices
2)A, I think
3)AGRICULTURAL BMPS
Conservation Tillage - the practice of leaving harvested plant materials on the soil surface to reduce runoff and soil erosion;
Crop Nutrient Management - managing all nutrient inputs helps ensure that nutrients are available to meet crop needs while reducing nutrient runoff
