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所在平台: Udemy |
课程主页: https://www.udemy.com/course/metallurgy-mechanical-properties-testing-of-steel/
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课程名称：冶金学：钢的机械性能与测试 课程概述： 本课程主要讲解钢的冶金基础知识，特别是晶体结构及其对钢的机械性能的影响。课程内容涵盖以下几个方面： 1. **晶体格子基础**： - 什么是晶体格子，及各种晶体的类型。 - 相关计算，如单位晶胞中的原子数量、原子半径与晶体结构的关系、原子所占体积、原子堆积因子等。 2. **空隙的理解**： - 聚合物空隙及FCC（面心立方）和BCC（体心立方）结构中的空隙类型及其比较。 - 计算八面体空隙与四面体空隙，以及这些空隙在铁中的作用，特别是碳的溶解性对晶格结构的影响。 3. **钢的硬度与焊接性**： - 碳含量对钢的硬度和焊接性的影响及计算碳当量的方法。 - 铬和镍的等效计算及其与焊接性的关系。 4. **塑性行为与晶体滑移**： - 翻滑带和平面、滑移在FCC与BCC晶体中的表现。 - 晶界与位错、冷加工对晶界的影响。 5. **管道检测、测试与标记**： - 重点介绍在制造过程中管道检测的重要性，涵盖15种以上的常用测试方法。 - 课程分为四个主要部分：冶金检测、破坏性测试、无损检测、视觉与标记检查。 - 各种检测方法包括：晶粒尺寸、氢诱导裂纹、拉伸测试、冲击测试、超声波检测等。 通过本课程，学生和专业人士能够掌握管道行业检测与测试的基本要求，适合希望建立基础知识或复习的初级团队成员。注册后，课程内容可终身访问。
Basic of Crystal LatticeWhat are Crystal LatticeVarious Types of CrystalsCalculations for:Number of Atoms/Unit CellRelation b/w Atom radius & Crystal Lattice structureVolume OccupiedAtomic Packing FactorVolume occupied by the Atoms in Unit cellsPolyhedral VoidsTypes of Voids in FCC & BCCNumber of VoidsCalculations for:Octahedral VoidsTetrahedral VoidsComparison of VoidsVoid Sizes in BCC & FCCRelationships w.r.t. IRONSolubility of CarbonUnderstanding voids in IronAustenite & Ferrite SteelsComparison w.r.t. Lattice StructuresEnergy Required to displace the iron atomsBasics behind the solubility of Carbon atomsImpact on Lattice Structures with CarbonHardness of SteelsBehavior of carbonSteels w.r.t. Carbon %What is Carbon EquivalentCalculate Carbon EquivalentWeldabilityWhat is WeldabilityHardness & WeldabilityChromium & Nickel EquivalentsCalculating Cr & Ni EquivalentRelationship of various equivalnets w.r.t. WeldabilityDuctile BehaviourSlip Bands & Slip PlanesSlips in FCC & BCC CrystalsGrain Boundaries & DislocationsCold Working & Grain BoundariesPipe Inspection, Testing & Marking: Pipe Inspection is a continuous process during manufacturing, it has vast importance in process & piping industry. This course has been designed to understand the basic fundamentals about various (15+) testing methods commonly used in the industry. Along with basic fundamentals, various codes & standards (ASME, ASTM, API etc) shall also be listed out and discussed in details.This is divided into four major sections:Metallurgical testingDestructive TestingNon-Destructive testingVisual & Marking InspectionsUnder Metallurgical testing (Aggressive Environment) following tests have been covered1.Grain size (AS & SS)2.IGC- Intergranular Corrosion Test(SS)3.Ferrite (SS)4.HIC- Hydrogen-induced Cracking5.SSC- Sulfide Stress Corrosion CrackingUnder Destructive testing following tests have been covered1.The tensile2.Bend test3.Flattening test4.Impact test5.Creep testUnder Non-Destructive testing following tests have been covered1.Definition2.Purpose3.Various Types•Ultrasonic testing•Magnetic Penetrant testing•Radiographic testing•Liquid Penetration testing•Acoustic emission testingUnder Visual & Marking inspection following tests have been covered1.Hydro test2.Visual Inspection3.MarkingStudents or professional will be able to learn the basics & fundamentals of inspection and testing requirements in the piping industry. The fundamentals covered in this course are not only useful for the the professionals working at site but also for the entry level team members who want to build the fundamentals and refresh the basics. once enrolled there will be lifetime access to the course material.
