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Chp1_Materials and their properties 课件_图文

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Materials Forming and Control Engineering

Chapter 1 Materials and Their Properties
1.1 Metals and Non-metals Words and terms: ? ? ? ? ? ? ? ? ? ? mechanical property 机械力学性能 metallic bond 金属键 critical part and element 关键零部件 crystal lattice 晶格 covalent bond 共价键 electrostatic attraction 静电吸引 plastic deformation 塑性变形 plastics 塑料 self-strengthening 自强化 stress concentrator 应力集中点 the tip of a crack 裂纹尖端

Chapter 1 Materials and Their Properties
1.1 Metals and Non-metals answers: 1. Metals are capable of plastic deformation and selfstrengthening. 2. Metals are characterized by the metallic bond and the metallic bond are not rigid (pliable).

Chapter 1 Materials and Their Properties
1.2 Ferrous Alloys Words and terms: ? ferrous 铁的 ? corrosion resistance 耐腐蚀;抗蚀力 ? arbitrary 特定的;武断的

Chapter 1 Materials and Their Properties
1.2 Ferrous Alloys answers: 1. Steel contains between 0.05 and 2.0 wt% carbon. And The cast irons contain between 2.0 and 4.5 wt% carbon.

2. If the total non-carbon additions is lower than 5 wt% in the steel, it is low alloy steel.

Chapter 1 Materials and Their Properties
1.2.1 Plain Carbon steels Words and terms: plain carbon steel 普通碳钢 bar 棒材 beam 线材 state standard 国标 stamping 压印?钱币的制造? alloying element 合金元素 deoxidation 脱氧 harmful impurity 有害杂质 steelmaking works 炼钢厂 machine tool 机床 hot-rolled steel 热轧钢 welding 焊接 sheet 板材 forging 锻造

Chapter 1 Materials and Their Properties
1.2.1 Plain Carbon steels answers: 1. Group C. 2. carbon.

Chapter 1 Materials and Their Properties
1.2.2 Low Alloy Steels Words and terms: low alloy steel 低合金钢 ductile 可延展的?可锻的 eminently 杰出的 proprietary 特定的 HSLA 低合金高强度钢 stress relief 应力松

Chapter 1 Materials and Their Properties
1.2.2 Low Alloy Steels answers:

1、the latter has higher strength. 2、application of it will reduce the weight of vehicle. 3、optimal alloy selection and carefully controlled processing.

Chapter 1 Materials and Their Properties
1.2.3 High Alloy Steels Words and terms: turbine 涡轮机 austenitic 奥氏体的 bcc 体心立方 martensite 马氏体 cutlery 刀具 precipitation 沉淀 dislocation 位错 tungsten 钨 molybdenum钼 cobalt 钴 rust 生锈 fcc 面心立方 (face-centered cubic) tetragonal 四角的

Chapter 1 Materials and Their Properties
1.2.3 High Alloy Steels answers:

1、essential improvements in properties such as higher strength, improved corrosion resistance, or high heat resistance. 2、high heat resistance 3、nickel

Chapter 1 Materials and Their Properties
1.2.4 Cast Iron Words and terms: viscosity 粘性、粘度 shrinkage 收缩 inferior 低等的 porosity 孔、多孔性 magnesium 镁 spheroidal 球状的;椭球体的 sphere;spheroid; spherical?球状的?天体的? ellipsoid 椭球 ellipsoidal 椭球体的 ellipse 椭圆? malleable 可锻的?韧性的 nodular 节结状的?榴状的 kinetics 动力学

Chapter 1 Materials and Their Properties 1.2.4 Cast Iron
answers:

1、 low melting temperature and liquid phase viscosity 2、 four type: white iron, gray iron, ductile iron; malleable iron 3、 it promotes spherical graphite to precipitate 4、 sphere

Chapter 1 Materials and Their Properties
1.3 Non-ferrous Alloys Words and terms: reserve 储藏量 hcp 密排六方 nitride 氮化物 tenacious 坚韧的?顽固的 dental alloy 补牙用合金 monel 蒙乃尔合金 galvanization 镀锌 toxicity 毒性 radiation shielding 射线屏蔽 crust 壳层 slip system 滑移系 solder 软钎料 passivaton 钝化 catalytic 催化 crucible 坩埚 bath 巴思 地名 refractory 耐火的

Chapter 1 Materials and Their Properties
1.3 Non-ferrous Alloys answers: molybdenum 钼 tantalum 钽 osmium 锇 platinum 铂 niobium 铌 iridium 铱 palladium 钯

calcium 钙 antimony 锑
rhodium 铑 ruthenium 钌

lead 铅 tin 锡 beryllium 铍 vanadium 钒 titanium 钛

Chapter 1 Materials and Their Properties
1.3 Non-ferrous Alloys answers: ? 1、 aluminum alloys have some good properties, such as low density, good corrosion resistance, good electrical conductivity, easy of fabrication, and beautiful appearance. ? 2、 Magnesium ? 3、 A practical method of separating titanium from reactive oxide and nitride was not available. ? 4、 Excellent electrical conductivity, thermal conductivity, superior corrosion resistance, high ductility and formability. ? 5、 One Ni- Cu alloy.

Chapter 1 Materials and Their Properties
1.4 Polymers Words and terms: ? ? ? ? ? ? ? ? Bulk 块状 Synonym 同义词 Inorganic 无机的 Organic 有机的 Polymerization 聚合 Thermoplastic 热塑性的 Thermosetting 热固性的 Additive 添加剂 Viscoelastic 粘弹性的 Elastomeric 弹性体的

Chapter 1 Materials and Their Properties
1.4 Polymers answers: 1、 polys means many , and meros mean parts. 2、 Thermoplastic polymer will become less rigid upon heating,

and thermosetting polymers become more rigid upon heating.

? Metal polymer steel iron properties alloy element Thermoplastic glass stone machine tool bar stainless steel superalloy heat treatment Metallic bond stress corrosion resistance Carbon steel harmful impurity shrinkage inferior organic Addictive




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