材料成型及控制工程专业英语-_2._HEAT_TREATMENT_OF_STEEL.ppt - * - 因此奥氏体转变为珠光体伴随着碳的扩散和重新分布。随着温度的降低,扩散率显著降低,因此,转变需在较高的过冷下,转变会被延迟。 For this reason the austenite to pearlite transformation is accompanied with the diffusion, redistribution of...
2009©HisuntechCorp. 材料成型专业英语第二章材料成型专业英语第二章 CHAPTER2HEATTREATMENTOFSTEELCHAPTER2HEATTREATMENTOFSTEEL 热处理在现代机械工程中的作用不可能评价的过高。 由热处理而产生的性能改变是特别重要的。 -1- Theroleofheattreatmentinmodernmechanical engineeringcannotbeoverestimated. Thechangesinthepro...
Heat treatment is a method by which the heat treater can change the physical properties of a metal. There are three main operations in the heat treatment of steel: hardening, tempering, and annealing.The hardening operation consists of heating the steel above its critical range and then quenching...
CHAPTER2HEATTREATMENTOFSTEEL 2.1.1temperatureandtime温度和时间 Thepurposeofanyheattreatingprocessistoproducethedesiredchangesinthestructureofmetalbyheatingtoaspecifiedtemperatureandbysubsequentcooling.任何热处理的目的都是（通过）将金属加热到一定的温度并(随后)冷却,以使金属组织产生所需变化。-2- CHAPTE...
2、如你看到网页展示的文档有jinchutou.com水印,是因预览和防盗链等技术需要对部份页面进行转换压缩成图而已,我们并不对上传的文档进行任何编辑或修改,文档下载后都不会有jinchutou.com水印标识,下载后原文更清晰; 3、所有的PPT和DOC文档都被视为“模板”,允许上传人保留章节、目录结构的情况下删减部份的内容;下载前...
Practical Heat Treating, Second Edition (#05144G) www.asminternational.org CHAPTER 2 Fundamentals of the Heat Treating of Steel BEFORE CONSIDERATION can be given to the heat treatment of steel or other iron-base alloys, it is helpful to explain what steel is. The common dictionary de?nition ...
heattreatmentofsteel 钢的热处理 第二章钢的热处理 Heattreatment热处理Pearlite珠光体Sorbite索氏体Troostite屈氏体Martensite马氏体Bainite贝氏体Ferrite铁素体Cementite渗碳体Graphite石墨 第二章钢的热处理 Annealing退火Normalizing正火Hardening(quench)淬火Tempering回火Chemicalheattreatment化学热处理Thermomechanicaltreatment...
Heat Treatment of Steel We can alter the characteristics of steel in various ways. In the first place, steel which contains very little carbon will be milder than steel which contains a higher percentage of carbon, up to the limit of about 1.5%. Secondly, we can heat the steel above a ...
lesson13-ch6-HeatTreatment_v1-讲义讲义.ppt,Today’s lecture: Heat Treatment of Metals Ageing or Precipitation Hardening Fine particles can also be formed that block dislocations from moving Involves Solution treatment to temperature above solvus line Que
Annealing, normalizing, quenching, tempering, and surface hardening are popular heat treatment processes. For each heat treatment process to achieve the desired properties, distinct heating and cooling rates, holding times, and temperature ranges are needed. Heat treatment of steel is indispensable in ...