UNIT I PHASE DIAGRAMS

Solid solutions – Hume Rothery’s rules – the phase rule – single component system – one-component system of iron – binary phase diagrams – isomorphous systems – the tie-line rule – the lever rule – application to isomorphous system – eutectic phase diagram – peritectic phase diagram – other invariant reactions – free energy composition curves for binary systems – microstructural change during cooling.

UNIT II FERROUS ALLOYS

The iron-carbon equilibrium diagram – phases, invariant reactions – microstructure of slowly cooled steels – eutectoid steel, hypo and hypereutectoid steels – effect of alloying elements on the Fe-C system – diffusion in solids – Fick’s laws – phase transformations – T-T-T-diagram for eutectoid steel – pearlitic, baintic and martensitic transformations – tempering of martensite – steels – stainless steels – cast irons.

UNIT III MECHANICAL PROPERTIES

Tensile test – plastic deformation mechanisms – slip and twinning – role of dislocations in slip – strengthening methods – strain hardening – refinement of the grain size – solid solution strengthening – precipitation hardening – creep resistance – creep curves – mechanisms of creep – creep-resistant materials – fracture – the Griffith criterion – critical stress intensity factor and its determination – fatigue failure – fatigue tests – methods of increasing fatigue life – hardness – Rockwell and Brinell hardness – Knoop and Vickers microhardness.

UNIT IV MAGNETIC, DIELECTRIC AND c MATERIALS

Ferromagnetism – domain theory – types of energy – hysteresis – hard and soft magnetic materials – ferrites – dielectric materials – types of polarization – Langevin-Debye equation – frequency effects on polarization – dielectric breakdown – insulating materials – Ferroelectric materials – superconducting materials and their properties.

UNIT V NEW MATERIALS

Ceramics – types and applications – composites: classification, role of matrix and reinforcement, processing of fiber reinforced plastics – metallic glasses: types , glass forming ability of alloys, melt spinning process, applications – shape memory alloys: phases, shape memory effect, pseudoelastic effect, NiTi alloy, applications – nanomaterials: preparation (bottom up and top down approaches), properties and applications – carbon nanotubes: types.

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PH8251 Materials Science – FAQ

What is the Full Form of the Subject Code PH8251?

The Full Form of Subject Code PH8251 is Materials Science.

How to Download PH8251 Notes?

The students can download the PH8251 Materials Science Part-A 2 marks, Part-B 13 marks and Part-C 15 marks questions with answers (Notes) on the EasyEngineering website for preparing their upcoming second semester examination.

Where to Download PH8251 Local Author Book PDF?

On the EasyEngineering PH8251 Materials Science page, the students can download the Local Author Book PDF, which contains unit wise Part-A 2 marks, Part-B 13 marks and Part-C 15 marks important questions with answers.

How to Download Previous Years PH8251 Question Papers?

The Anna University students can download the PH8251 Materials Science Previous Years Question Papers Collection on the PH8251 Question Papers Page, which contains the last 5 years question papers sets (PH8251 Question Bank) for the students to prepare for their upcoming second semester examination.

In which regulation semester exam PH8251 subject is studied?

The PH8251 Materials Science subject is studied by the Anna University Students of First Year in their Second Semester Examination of 2017 Regulation.

How to download PH8251 Part-A 2 Mark Questions with Answers?

On the EasyEngineering website, the students can download the PH8251 Materials Science Part-A 2 mark Questions with answers. These PH8251 notes are useful for those candidates who are preparing for their upcoming second semester examination of Anna University.

How to download PH8251 Part-B 13 Mark Questions with Answers?

The students can download the PH8251 Materials Science Part-B 13 mark Questions with answers on the EasyEngineering webpage for preparing their upcoming Anna University second semester examination.

How to download PH8251 Part-C 15 Mark Questions with Answers?

The PH8251 Materials Science Part-C 15 Mark Questions with answers are available to download on the EasyEngineering website for preparing the upcoming Anna University second semester examination. This Part-C is considered as very important section in the regulation 2017 in which the students are focus to answer the questions because the answer for this section is allotted as 15 Marks.

How to download Anna University PH8251 syllabus?

The PH8251 Materials Science Syllabus is directly downloaded from the Anna University Regulation 2017 Syllabus page on the EasyEngineering.

How to check Anna University PH8251 Internal Marks?

The PH8251 Materials Science Anna University Internal marks can be check by the students from the official portal of Anna University (coe1.annauniv.edu). The steps to check the Anna University Internal marks are clearly explained in the EasyEngineering Anna University Internal Mark checking page.

How to check Anna University PH8251 exam results?

The PH8251 Materials Science Anna University semester examination results can be check by the students from the official result checking pages/portals (i.e., aucoe.annauniv.edu or coe1.annauniv.edu). Also, In the EasyEngineering website the Results checking page are available to check the Anna University current semester examination results quickly.

How to check Anna University PH8251 Grace marks details?

In the Easyengineering PH8251 Materials Science page contains the grace mark details to notify the students to know about the grace marks provided by Anna University for the invalid or out of portions/syllabus questions asked in the current second semester PH8251 exam.

Which Engineering department is studying the PH8251 as one subject?

The PH8251 Materials Science subject is studied by the Anna University First year students of Mechanical Engineering department as one subject in their second semester examination.