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For two reasons: 1. martensite is bct structure which prevent the movement of dislocations. 2. martensite has higher carbon concentraton.
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Which is the harder among them Cementite or Martensite?
Martensite
What is a sentence for brittle?
To be brittle is to be hard and breakable. An example sentence would be: The older she got, the more brittle her bones seemed to be.
What structure forms in hypoeutectoid steel after full hardening?
Martensite
What is trip steel?
TRIP steel is Transformation Induced Plasticity steel. It is a composite steel that consists of ferrite, bainite, martensite precipitants and restrained austenite. The austenite will transform into martensite when strained, thus increasing the strength of the steel. To stabilize the austenite you need to introduce alloy elements, usually Manganese.
What material is more brittle wood cast iron steel or glass?
Cast iron is very brittle in its basic form, with yield point very close to fracture point. However, glass is the most brittle, having no yield point - it is perfectly elastic before failure
What metals that conduct electricity are brittle?
Carbon Steel - Martensite
Is carbon is brittle?
hard and brittle so YES
Is brittle carbon?
hard and brittle so YES
Is carbon brittle as it is hard?
brittle meaning EASILY BREAKABLE so i don't think it is brittle...
Why it is necessary to temper hardened steel immediately after quenching?
to avoid the high internal stresses caused by quenching and to get tempered Martensite that is less brittle
Which is the harder among them Cementite or Martensite?
Martensite
What heat treating process makes martensite less brittle?
Tempering. Removes carbon atoms, making the material softer and more ductile at the expense of hardness.
What is the opposite of hard that starts with the letters 'br'?
brittle
Does mild steel become harder when heated?
Mild Steel is not hard and brittle. Once Mild Steel is subjected to heating and then allowed to cool, it forms different compounds of steel having different properties. This depends upon 1. The heating temperature 2. The time allowed for cooling. When MS is heated to high temperatures so that it appears red hot and then suddenly cooled down to ambient temperature, it forms a compound called Martensite, which is hard. This is because there is more carbon in Martensite then in Mild Steel. This process of altering properties of compounds by heat is called heat treatment.
Why are ionic solids hard and brittle?
Ionic solids are brittle and hard as they are bonded with electrostatic bonds.
What are some uses for martensite?
hardness of martensite is greater than bionite and fine pearlite.
Is pencil considered hard or brittle?
hard
