Heat Treatment of Steel (钢的热处理)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...
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...
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...
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,温度和时间,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,温度和时间,因此,热处理的主要因素是温度和时间,所以
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 ...
It is not only the chemical composition that controls the toughness of the steel, heat treatment conditions also greatly determine the improved toughness of the 9%Ni steel. Generally, QT steel shows better Charpy V notch impact values as compared to NNT steel over the temperature range(3). Cha...
PURPOSE:To obtain a sufficient depth of hardening and high fatigue strength by specifying the composition of a steel and applying austempering as pretreatment and high frequency treatment as surface hardening treatment. CONSTITUTION:The composition of a steel is composed of, by weight, 0.45-0.65% C...
材料成型及控制工程专业英语-_2._HEAT_TREATMENT_OF_STEEL解析.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 ac
SAE-AMS-2759-11-2018.pdf SAE-AMS-4260F-2001-R2006 simulation of distortion and residual stress development during heat treatment of steel castings (7.65mb) 华南理工大学机械工程材料课件-ch6-Heat+Treatment 球罐施工焊接焊后热处理程序Post Weld Heat Treatment Procedure 机械工程材料lesson11-ch6-Heat...
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...