Question:easy
The fracture occurred during the crack propagation along the grain boundaries is called
The fracture occurred during the crack propagation along the grain boundaries is called
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Memorize the prefixes: Inter- means "between" (between the grains). Trans- means "across" (across the grains). This makes it easy to distinguish the two main fracture paths.
Updated On: Jul 2, 2026
- Inter granular fracture
- Trans granular fracture
- Ductile fracture
- Brittle fracture
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The Correct Option is A
Solution and Explanation
Step 1: Picture the two possible highways a crack can take.
In a polycrystalline metal, a growing crack has two choices, it can cut straight through the grains themselves, or it can travel along the boundaries where the grains meet.
Step 2: Match the Latin roots to the crack path.
The prefix trans means across, so a crack cutting through the grains is called transgranular, while the prefix inter means between, so a crack that follows the boundaries between grains is called intergranular. This kind of boundary path often shows up when the grain boundaries are weakened by impurity segregation, corrosion attack, or high temperature grain boundary sliding.
Step 3: Answer the question as asked.
Since the question specifically describes crack propagation running along the grain boundaries, that path by definition is the intergranular fracture, and the fracture surface would actually show the individual grain facets rather than a cleaved, faceted interior.
\[ \boxed{\text{Inter granular fracture}} \]
In a polycrystalline metal, a growing crack has two choices, it can cut straight through the grains themselves, or it can travel along the boundaries where the grains meet.
Step 2: Match the Latin roots to the crack path.
The prefix trans means across, so a crack cutting through the grains is called transgranular, while the prefix inter means between, so a crack that follows the boundaries between grains is called intergranular. This kind of boundary path often shows up when the grain boundaries are weakened by impurity segregation, corrosion attack, or high temperature grain boundary sliding.
Step 3: Answer the question as asked.
Since the question specifically describes crack propagation running along the grain boundaries, that path by definition is the intergranular fracture, and the fracture surface would actually show the individual grain facets rather than a cleaved, faceted interior.
\[ \boxed{\text{Inter granular fracture}} \]
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