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Dissertations / Theses on the topic 'High-chromium white cast iron'

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Published: 4 June 2021

Last updated: 26 July 2025

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1

Crepeau, Paul Noles. "Crack propagation in high chromium white cast iron." Thesis, Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/11182.

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2

Armitage, Kelly, and n/a. "Laser assisted machining of high chromium white cast-iron." Swinburne University of Technology, 2006. http://adt.lib.swin.edu.au./public/adt-VSWT20070214.155302.

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Laser-assisted machining has been considered as an alternative for difficult-to-machine materials such as metallic alloys and ceramics. Machining of some materials such as high chromium alloys and high strength steels is still a delicate and challenging task. Conventional machines or computer numerical control (CNC) machines and cutting tools cannot adapt easily to such materials and induce very high costs for operations of rough machining or finishing. If laser-assisted machining can be implemented successfully for such materials, it will offer several advantages over the traditional methods

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3

Armitage, Kelly. "Laser assisted machining of high chromium white cast-iron." Australasian Digital Thesis Program, 2006. http://adt.lib.swin.edu.au/public/adt-VSWT20070214.155302/index.html.

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Thesis (MEng) - Swinburne University of Technology, Industrial Research Institute Swinburne - 2006.<br>A thesis submitted in fulfillment of the requirement for the degree of Master of Engineering by Research, Industrial Research Institute Swinburne, Faculty of Engineering and Industrial Sciences, Swinburne University of Technology - 2006. Typescript. Includes bibliographical references (p. 113-116).

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4

Gieseke, Brian G. "Observations on the fracture of hypoeutectic, high chromium white cast irons." Thesis, Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/19967.

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5

Stevenson, Anthony Nicholas James. "Wear and microstructure of weld-hardfacing deposits of high chromium white cast irons." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243064.

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6

Kan, Wen Hao. "The Development of Ferrous Metal Matrix Composites for Use in the Mining and Mineral Processing Industry." Thesis, The University of Sydney, 2017. http://hdl.handle.net/2123/18272.

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The mining and mineral processing industries feature very harsh service environments that often severely limit the service life of components and equipment used. High Cr white cast irons are usually the material of choice for many high wear applications that also require some amount of corrosion resistance. The excellent wear performance of these alloys is attributed to both a volume fraction of hard Cr carbides (a ceramic phase) and a hard, corrosion resistant ferrous matrix. These alloys present, however, poor fracture toughness. This thesis proposes that stainless steel matrix composites re

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7

Silva, Joélson Vieira da. "Estudo da influência do tratamento térmico de austenitização seguida de resfriamento ao ar forçado na resistência ao desgaste abrasivo do ferro fundido branco ASTM A532 II D." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/170956.

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O objetivo desta pesquisa é realizar um estudo sobre o desgaste abrasivo do ferro fundido branco alto cromo de acordo com a norma ASTM A532 II D, submetidas à diferentes faixas de temperatura de austenitização, decompondo a faixa de 950 a 1.150 ºC, amplamente usada nas fundições, em intervalos de 50 ºC. Esta liga foi escolhida para estudo em virtude de sua extensa aplicação na indústria de mineração, possuindo como principal característica a utilização em revestimentos de moinhos e martelos de britadores, onde a resistência ao desgaste abrasivo é exigida. Os corpos de prova foram caracterizado

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8

Matsumoto, Marcos Machado. "Estudo sobre a resistência à ciclagem térmica dos ferros fundidos de alto cromo e do aço ferramenta AISI D2." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-20032012-110351/.

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Este estudo apresenta uma abordagem para a avaliação do comportamento de um ferro fundido branco de alto cromo e um aço ferramenta AISI D2 submetido a ciclos térmicos. Para a realização do estudo foi desenvolvido um procedimento para ensaios de fadiga térmica submetidos a números de ciclos variados, usando para aquecimento um sistema indutivo e para resfriamento um tanque de água. Devido a complexidade dos fenômenos envolvidos, um modelo de elementos finitos foi elaborado para a solução do campo de temperaturas e tensões superficiais atuantes. O cont

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9

Ruiz, Alberto Ibañez. "A presença do nióbio em um ferro fundido branco de cromo-molibdênio: traçado da curva transformação-tempo-temperatura." Universidade de São Paulo, 1996. http://www.teses.usp.br/teses/disponiveis/18/18136/tde-09102017-142618/.

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Avaliou-se experimentalmente o ferro fundido branco de alto-cromo-molibdênio ao qual foi adicionado nióbio, a respeito de sua temperabilidade. Dilatometricamente traçou-se a curva TTT desse material, bem como a de um ferro fundido branco de alto cromo para efeito comparativo. Constatou-se por essa comparação e pelos resultados da literatura a alta temperabilidade obtida pela liga experimental. A partir da temperatura de austenitização utilizada, podem-se usar taxas de resfriamento de até 0,12°C/s sem transformação de fase, enquanto que na liga comparativa essa taxa aumenta para 5,8°C/s. Foram

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10

Tozetti, Karla Dubberstein. "Efeito da carga e do tamanho do grão abrasivo no desgaste do ferro fundido branco 19,9 % cromo e 2,9 % carbono." Universidade Federal do Espírito Santo, 2013. http://repositorio.ufes.br/handle/10/6233.

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Made available in DSpace on 2016-12-23T14:08:10Z (GMT). No. of bitstreams: 1 Karla Dubberstein Tozetti.pdf: 2038739 bytes, checksum: f6618f8c3d4a6be204f5f15fc187f5a1 (MD5) Previous issue date: 2013-04-01<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>No trabalho foi investigado o efeito da carga e do tamanho da partícula abrasiva na resistência ao desgaste da liga de ferro fundido branco alto cromo (FFBAC) com composição química de 2,9% de carbono e 19,9% de cromo em massa. A microestrutura da liga é composta por uma matriz de martensita revenida a 200 ºC com carboneto eut

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11

Solem, Benjamin. "Dilatometry Study of a High-Chromium Cast Iron." Thesis, KTH, Hållfasthetslära (Avd.), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-232528.

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High-chromium cast irons are used in certain applications where the demand on abrasion resistance is high. Such applications can be found in the milling industry and in pumps for transport of abrasive particles in liquid suspension. Soft annealed high-chromium cast iron containing 2.6 % C and 24.7 % Cr was supplied by Xylem Water Solutions, Sundbyberg, and investigated by dilatometry. The heat treatments were inspired by induction hardening procedures. The purpose of the investigation was to evaluate the effect of maximum temperature reached during heat treatment on the final length of the tes

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12

Silva, Cloir Salatiel da. "Análise microestrutural em altas temperaturas de um ferro fundido branco de alto cromo com molibdênio e nióbio." Universidade de São Paulo, 1999. http://www.teses.usp.br/teses/disponiveis/88/88131/tde-14092016-124243/.

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As mudanças microestruturais, causadas pela adição de elementos de liga e pelos tratamentos térmicos, modificam as propriedades mecânicas e tribológicas dos materiais. Foi desenvolvido então um estudo em amostras de um ferro fundido branco de alto cromo com molidbênio e nióbio, procurando determinar os efeitos dos elementos de liga molibdênio e nióbio, na microestrutura deste material, através de medidas de dureza, dilatometria, ataque químico, microscopia eletrônica de varredura e,principalmente, a utilização de metalografia em altas temperaturas. A técnica de metalografia em altas temperatur

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13

Liu, Qiang. "Control of Wear-Resistance Properties in Ti-added Hypereutectic High Chromium Cast Iron." Licentiate thesis, KTH, Tillämpad processmetallurgi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-105854.

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High chromium cast iron (HCCI) is considered as one of the most useful wear resistance materials and their usage are widely spread in industry. The wear resistance and mechanical properties of HCCI mainly depend on type, size, number, morphology of hard carbides and the matrix structure (γ or α). The Hypereutectic HCCI with large volume fractions of hard carbides is preferred to apply in wear applications. However, the coarser and larger primary M7C3 carbides will be precipitated during the solidification of the hypereutectic alloy and these will have a negative influence on the wear resistanc

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14

Liu, Qiang. "Microstructure Evaluation and Wear-Resistant Properties of Ti-alloyed Hypereutectic High Chromium Cast Iron." Doctoral thesis, KTH, Tillämpad processmetallurgi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-128532.

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High chromium cast iron (HCCI) is considered as one of the most useful wear resistance materials and their usage are widely spread in industry. The mechanical properties of HCCI mainly depend on type, size, number, morphology of hard carbides and the matrix structure (γ or α). The hypereutectic HCCI with large volume fractions of hard carbides is preferred to apply in wear applications. However, the coarser and larger primary M7C3 carbides will be precipitated during the solidification of the hypereutectic alloy and these will have a negative influence on the wear resistance. In this thesis, t

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15

Francis, John Anthony. "Principles for open-arc weld deposition of high-chromium white iron surface layers /." Title page, contents and abstract only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09phf81845.pdf.

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16

Ferraro, Stefano. "Influence of trace elements on secondary die-cast aluminium alloys." Doctoral thesis, Università degli studi di Padova, 2014. http://hdl.handle.net/11577/3423822.

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Recycling play a key role on saving of natural resources and on reducing pollution. The recycling of aluminium alloys is also cost-effective, since it reduce the material cost and creates a considerable energy-saving. The use of recycled Al alloys (usually called secondary) has improved in recent years also because of their comparable mechanical properties with primary aluminium alloys. During the production of secondary aluminium alloys, the scrap are mixed regardless of their specific chemical composition, and then master alloys or pure elements are added to the molten metal. Furthermore,

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17

Yen, Chien-Lung, and 嚴建隆. "Research on the Wear-Resistance of High-Chromium White Cast Iron and Multi-component White Cast Iron." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/00719880767916922761.

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博士<br>國立臺灣大學<br>機械工程學研究所<br>101<br>This research studied the difference of wear resistance between high chromium white cast iron and multi-component white cast iron under two optimum conditions (including optimal alloy composition and optimal heat treatment) by using Pin-On-Disk wear test and solid particle erosion test. The composition of cast iron has a close relationship with its phase change of mold status and it directly influences its wear resistance and erosion properties. The test results found that wear resistance of high chromium white cast iron has linear relationship with test

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18

Yang, Dong Shyen, and 楊棟賢. "A Study on the Microstructure and Abrasion Resistance of High Chromium White Cast Irons Solidified Directionally." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/b726qr.

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博士<br>國立臺灣科技大學<br>機械工程系<br>99<br>The Chromium carbide in high chromium white cast iron (HCWCI) has high hardness (Hv 1060-1800), with an high hardenability matrix, it make HCWCI have excellent wear resistibility. The size, appearance, volume fraction, and distribution rate of the carbide are affected by the solidification and the heat treating processes. As the support interface with carbide and the function of strain energy absorption, the structure of iron matrix is the key factor which controls the performance of HCWCI. This research is studying the effect of cooling rate and temperature gr

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19

曾昭景. "A study of surface modification of high-chromium white cast irons by powder plasma transferred arc melting method." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/11526608845308919718.

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20

Chang, Wei-Shin, and 張維鑫. "Study on the Optimal Heat Treatment Conditions and Wear Resistance Property of High-Cr Cast Iron and Multi-component White Cast Iron." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/87423143535439886309.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>96<br>The objective of this study is to obtain the optimal heat treatment conditions (tempering treatment in specific) for achieving the required wear resistant property for both high-Cr (~15%Cr) cast iron used in the outer shell of bi-metal rolls and multi-component white cast iron used in hot milling rolls. The experimental results indicate that the quenched and tempered microstructures consist of temper martensite (contains numerous fine global secondary M7C3 carbides), eutectic M7C3 carbides, and retained austenite. The amount of retained austenite decreases wit

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21

Chen, Yi-Siou, and 陳毅修. "Effect of Cryogenic Treatment on Microstructural Characteristics and Corrosion Behavior of High-Chromium Cast Iron Coating on Spheroidal Graphite Cast Iron Deposited by Plasma Transferred Arc Process." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/89849281870265010959.

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碩士<br>遠東科技大學<br>機械工程研究所<br>103<br>Spheroidal graphite (SG) cast iron and medium carbon steel with high chromium cast iron surface coating are mainly used in wear rings, finishing rolls of hot rolled flat products, forming molds, furnace liners, cement crushers and grinding balls in mining and ducting equipment etc. Since these components may encounter problems such as abrasive wear, erosive wear and corrosion in the aforementioned applications, a common method for enhancing strength and hardness of these wearable components is the plasma transferred arc (PTA) overlaying process for surface mod

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22

Francis, John A. "Principles for open-arc weld deposition of high-chromium white iron surface layers / John Anthony Francis." 1999. http://hdl.handle.net/2440/19484.

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Bibliography: leaves 191-198.<br>xxi, 201 leaves : ill. ; 30 cm.<br>Title page, contents and abstract only. The complete thesis in print form is available from the University Library.<br>Examines the mechanisms controlling the dilution, geometry and wear performance of weld- deposited high-chromium white iron surface layers. Focuses on layers deposited by mechanised flux-cored-arc welding, as this process achieves higher deposition rates than manual-metal-arc welding and affords a greater degree of control over individual welding variables.<br>Thesis (Ph.D.)--University of Adelaide, Dept. of M

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