heat treatment of high chrome cast iron

Study on the heat treatment process of high chrome cast ...

The heat treatment and healing process of high chromium cast iron is actually a dynamic process of secondary carbide precipitation and dissolution, so the selection of quenching temperature and holding time is very important. At a certain temperature, the higher the quenching temperature is, …


(PDF) Microstructure and properties of high chromium cast ...

The effects of chromium, nickel, manganese, molybdenum and silicon are discussed in relation to recently developed heat treatment procedures by which high-chromium white iron castings can be ...


Effect of Heat Treatment on the Impact Toughness of 'High ...

Mar 07, 2017· Mar 07, 2017· A bimetallic 'low-alloy steel – high-chromium cast iron' composite obtained by successive sand casting is studied and shown to have good cohesion on the interface and no casting defects. The hardness and the impact toughness of the bimetal increase simultaneously. The microstructure is more homogeneous after diffusion annealing at 1040°C, rapid cooling, and 3-h …


(PDF) Microstructure and properties of high chromium cast ...

Dec 01, 2009· The effects of chromium, nickel, manganese, molybdenum and silicon are discussed in relation to recently developed heat treatment procedures by which high-chromium white iron …


「heat treatment of high chrome cast irons」

Heat treatment process of the high chrome cast iron Grinding Media. ABSTRACT: A heat treatment process of high chromium cast iron grinding media with trace alloying elements Mo, V, NB was studied. The heat treatment processes of quenching at 980 °C, tempering at 400 °C and 600 °C was adopted. The microstructure of the quenched Matrix is ...


High Chrome Cast Iron Heat Treatment

Heat treatment process of the high chrome cast iron . The microstructure of high chromium white cast iron grinding ball as-cast and after heat treatment was observed by metallographic microscope The sample of 10mm* 10 mm* 8 mm in size at the center of the grinding ball was cut by weld and polished with 200 # to 1500 # metallographic sandpaper


High-chromium (22-34 per cent) Cast Iron Alloys and Their ...

on the surface of cast pieces, which adhere very well to the metal. Due to this, chrome irons are resistant to the action of heat and various corroding media7. Above 16 per cent Cr, an oxide layer type FcO.Cr20, forms on the iron surface, which strongly increases …


Heat Treatment Technology of High Chromium Iron Castings ...

Oct 02, 2020· As an anti-wear material, High Chrome White Iron Castings have not only necessary strength and toughness, but also their hardness is the most important quality index. Some high chromium iron castings can obtain the required hardness in the as-cast state, but most of them need heat treatment to meet the hardness requirements.


Optimizing heat treatment of high chromium cast irons ...

The paper presents the results of studying the phase composition of the cast alloy, as well as the effect of heat treatment of cast iron with a high chromium content on its structure and properties.


Heat treatment process of the high chrome cast iron ...

Heat treatment process of the high chrome cast iron Grinding Media. ABSTRACT: A heat treatment process of high chromium cast iron grinding media with trace alloying elements Mo, V, NB was studied. The heat treatment processes of quenching at 980 °C, tempering at 400 °C and 600 °C was adopted. The microstructure of the quenched Matrix is ...


Heat Treating of High-Alloy White Irons :: Total Materia ...

Nickel-chromium white iron castings are given a stress-relief heat treatment because, properly made, they have a martensitic matrix structure, as-cast. Tempering is performed between 205 to 260°C (400 to 450°F) for at least 4 h.


Heat Treating ASTM A532 | Chrome White Iron | Penticton ...

Jan 16, 2018· How to Heat Treat ASTM A532 – High Chrome White Iron Posted by Penticton Foundry on January 16, 2018. Why Use Chrome White Iron ASTM A532, or high chrome white iron, has superior abrasion resistance. It is particularly effective in machinery or equipment that experiences grinding, gouging abrasion or crushing.


Effect of heat treatment on the properties of high ...

1. Austenite in high-chromium cast irons is stable up to 500°. At higher temperatures the austenite begins to decompose, causing changes in the hardness, wear resistance, and mechanical properties. 2. The resistance of high-chromium cast iron to hydroabrasive wear is minimal in the cast condition and in the annealed condition. 3. To improve the machinability the alloys should be annealed at ...


Heat Treatment of Cast Irons | | Industrial Heating

Dec 12, 2018· Common Heat Treatment for the Specific Cast-Iron Types. High-alloy (e.g., high chromium, high nickel-chromium) white irons can be heat treated. For example, nickel-chromium white-iron castings are given a stress-relief heat treatment because, properly made, they have an as-cast martensitic matrix structure.


High Chromium Cast Iron: Part One :: Total Materia Article

The high controlled percentage of chromium helps to retard the formation of graphite and stabilize the carbides. The article of D. Kopyciński et al. presents results of heat treatment on the high chromium cast iron. The study was carrying out on samples cut from the casting made from chromium cast iron.