How does friction time affect the microstructure of dissimilar metal joints?
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The microstructure of dissimilar metal joints is affected by friction time. Increasing friction time can lead to changes in the microstructure of the joint. For example, in the case of joining 1045 steel to Q235 steel, the highest temperature of the joint first appears in the edge region, with a relatively low temperature in the central region. The material flow rate in the edge region is faster than that in the center and 0.5 R regions, and the maximum material flow rate increases and then decreases with increasing friction time . In another study on joining copper and stainless steel, it was found that a longer friction time of 15 s resulted in enhanced metallurgical bonding between the materials, with microstructural evolutions such as a full dynamic recrystallized zone at the copper side and a quenching zone at the stainless steel side .
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| Papers (5) | Insight |
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| Friction time affects the microstructure of dissimilar metal joints by influencing the microstructural evolution, such as the presence of dynamic recrystallized zones and quenching zones near the interface. | |
| Friction time affects the microstructure of dissimilar metal joints by influencing the microstructural evolution, such as the presence of dynamic recrystallized zones and quenching zones near the interface. | |
| The paper states that excessive dwell times in the friction processing method result in higher amounts of brittle intermetallic phases that degrade the joint strength. However, it does not provide specific information on how friction time affects the microstructure of dissimilar metal joints. | |
| Friction time affects the microstructure of dissimilar metal joints by influencing the width of the intermixing zone at the joint interface. | |
| The paper states that with the increase of friction time, the grains in the joint show a better refinement effect, which is beneficial to the improvement of the mechanical properties of the joint. |
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