Enhancing Fracture Resistance

[@introductiontomaterialsscience]

I have made a mistake in this video at 9:20. I say , and also write, that the ductile-to-brttle transition temperature increases with smaller grain size. This is incorrect. The correct statement is that the DBTT is lowered with decreasing grain size. Sorry for the confusion. I thank Ajith for pointing this out. Rajesh Prasad

[@CurioustoKnow-w2r]

00:12 Enhancing fracture resistance by controlling shape and size 01:27 Fibers enhance fracture resistance due to smaller diameters 02:48 Using thin wires for reinforcing composites enhances fracture resistance 04:04 High sulfur concentration leads to brittle sulfur particles coating the grain boundary 05:16 Manganese and low sulfur content enhance fracture resistance 06:33 Residual compressive stress enhances fracture resistance. 07:46 Introducing compressive surface stress enhances fracture strength 09:16 Fine grains enhance fracture resistance

[@bs143]

8:51 Carburisation can make surface harder. How does it resist crack? and are compressive streese introduced due to strain created by these carbon atoms?

[@anilkumarverma6978]

Sir,, Your way to explain is extraordinary, even a beginner may understand easily ,,I request you to please start a MCQ series on the topics you had explained.

[@rahulmeenamitm]

Hi sir one que. Is why FCC structure offers more resistance to creep..?

[@rajagulshaansheikh8605]

Just wanted to ask one query... The way you teach fracture resistance feels that Increasing ductility(decreasing brittleness) is equivalent to increasing fracture resistance... Is this always a case... If this was case then Why a brittle material can't have good fracture resistance

[@metallurgist8326]

1). In what way increase in DBTT favoured? 2).Fine grains leads to high DBTT or low DBTT??

[@introductiontomaterialsscience]

Fine grains enhance ductility. In other words, the DBTT should go down.

[@SatishGupta-oz8zr]

Sir viewing your valuable videos very interested & informative. Please tell about soaking time for Aluminium Circles after annealing in furnace. Await your reply