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Macrostructure etching with Nitric Acid

Macrostructure etching, how to etch (Mechanics, Metallurgy, Physics Strength of Material) This video intends to give you an idea of how to reveal the weld of a sample to be tested under chemical, mechanical or metallurgical test, prior to evaluation of the sample, which test is called macrostructure evaluation test... Microstrucrure quick basic explanation:    • Microstructure, quick basic explanati...   Replica Investigation, Microsture on site:    • REPLICA INVESTIGATION: Microstructure...   Macrostructure testing and evaluation:    • Macrostructure evaluation, weld, Heat...   Ball pin Drawing CAD Tut. UNISA 2017:    • BALL PIN CAD161S (UNISA Assignment 20...   Transfer Fork INVENTOR:    • Transfer Fork AUTOCAD Inventor  (Tuto...   Cross Head Assembly:    • CROSSHEAD Enssembly, Autocad tutorial...   Alignment Bracket:    • Alignment Bracket drawing with AutoCA...   Pivot Arm:    • Pivot Arm Drawing Tutorial, Hardware ...   Piston Drawing:    • Piston drawing, Piston Design and con...   Pinch Fit Cap:    • Pinch Fit Cap Drawing using AutoCAD I...   Mini Crank Case:    • How to draw a Mini Crank Case using A...   Mug Drawing:    • Mug drawing or Cup modeling using Aut...   Cross Head Assembly:    • CROSSHEAD Enssembly, Autocad tutorial...   How to design a three groove pulley:    • How to design a three grooves pulley ...   AutoCAD Practice UNISA 2020 :    • AutoCAD Practice Exercises: UNISA CAD...   Simplification logarithmique:    • Simplification logarithmique: Introdu...   Serie d'exercices mathematique:    • Equations logarithmiques avec simple ...   Solving for X:    • Math: Solving for X in a simple Logar...   Impact test at Low temperature, using CO2:    • Low temperature (-40°C or -40° F, usi...   Impact sample machining:    • Charpy, Impact Sample Machining on a ...   Impact, Toughness Calculation:    • IMPACT (Charpy) Testing MACHINE ,Toug...   Impact, Toughness Quick Explanation:    • IMPACT (Charpy) Testing MACHINE ,Toug...   Principle of Impact testing machine:    • Impact test, Charpy test, analysis (T...   Charpy Test at -196 °C (-196 degree Celsius using Liquid Nitrogen:    • Charpy Test at  -196 °C (-196 degree ...   My first thousand subscribers:    • My First Thousand Subscribers on YouT...   How to draw a roller using AutoCAD:    • How to draw a Roller using AutoCAD In...