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Table of contents for Praktische Metallographie, December 1987 1987年12月《德国金相学》目录表
Metallography Pub Date : 1988-02-01 DOI: 10.1016/0026-0800(88)90045-6
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引用次数: 0
A modified cold mounting technique 一种改进的冷安装技术
Metallography Pub Date : 1988-02-01 DOI: 10.1016/0026-0800(88)90040-7
R.J. Brettell
{"title":"A modified cold mounting technique","authors":"R.J. Brettell","doi":"10.1016/0026-0800(88)90040-7","DOIUrl":"10.1016/0026-0800(88)90040-7","url":null,"abstract":"","PeriodicalId":100918,"journal":{"name":"Metallography","volume":"21 1","pages":"Pages 103-107"},"PeriodicalIF":0.0,"publicationDate":"1988-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0026-0800(88)90040-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75240670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Applied Metallography 应用金相学
Metallography Pub Date : 1988-02-01 DOI: 10.1016/0026-0800(88)90042-0
Chris Bagnall
{"title":"Applied Metallography","authors":"Chris Bagnall","doi":"10.1016/0026-0800(88)90042-0","DOIUrl":"10.1016/0026-0800(88)90042-0","url":null,"abstract":"","PeriodicalId":100918,"journal":{"name":"Metallography","volume":"21 1","pages":"Pages 111-114"},"PeriodicalIF":0.0,"publicationDate":"1988-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0026-0800(88)90042-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"111957981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stereological analysis of creep cavities on polished sections 抛光截面蠕变空洞的体视学分析
Metallography Pub Date : 1988-02-01 DOI: 10.1016/0026-0800(88)90037-7
T.-S. Liu , D.G. Harlow, T.J. Delph
{"title":"Stereological analysis of creep cavities on polished sections","authors":"T.-S. Liu ,&nbsp;D.G. Harlow,&nbsp;T.J. Delph","doi":"10.1016/0026-0800(88)90037-7","DOIUrl":"10.1016/0026-0800(88)90037-7","url":null,"abstract":"<div><p>An analysis is presented of the stereological problem of estimating the distribution of sizes and shapes of creep cavities from cavity measurements taken on polished plane sections, subject to the assumptions that the cavities may be represented as collections of oblate spheroids and that the distribution of orientations of the cavities is known a priori. The problem is cast in the form of a double integral equation whose solution yields the desired distribution. An iterative numerical solution technique for this equation is proposed which seems to yield marked improvements over standard solution methods.</p></div>","PeriodicalId":100918,"journal":{"name":"Metallography","volume":"21 1","pages":"Pages 55-76"},"PeriodicalIF":0.0,"publicationDate":"1988-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0026-0800(88)90037-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84856434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
The compound formation mechanism of butterfly martensite 蝴蝶马氏体复合形成机理
Metallography Pub Date : 1988-02-01 DOI: 10.1016/0026-0800(88)90033-X
H. Gong , N.J. Gu
{"title":"The compound formation mechanism of butterfly martensite","authors":"H. Gong ,&nbsp;N.J. Gu","doi":"10.1016/0026-0800(88)90033-X","DOIUrl":"10.1016/0026-0800(88)90033-X","url":null,"abstract":"<div><p>The butterfly martensites formed in Fe-1.20% C, CrMn, GCr18Mo, and 25Cr2Ni4WA steels have been investigated by optical and transmission electron microscopy. It has been found that the mid-rib of a butterfly martensite is a thin-plate martensite and that the formation of butterfly martensite is a multi-stage process. In the initial stage, crossed or kinked thin-plate martensites are formed. Subsequently, these become mid-ribs, grow more, then create butterfly martensite in various forms. Crossed thin-plate martensite thickens into butterfly martensite with tails, while the kinked form transforms to tailless butterfly martensite by thickening on only one side of the wings. The formation of butterfly martensite may not be a single continuous process, but rather a compound one comprised of separate stages.</p></div>","PeriodicalId":100918,"journal":{"name":"Metallography","volume":"21 1","pages":"Pages 1-10"},"PeriodicalIF":0.0,"publicationDate":"1988-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0026-0800(88)90033-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83349359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
A comparison of etchants for quantitative metallography of bainite and martensite microstructures in Fe-C-Mo alloys Fe-C-Mo合金贝氏体和马氏体定量金相腐蚀剂的比较
Metallography Pub Date : 1988-02-01 DOI: 10.1016/0026-0800(88)90039-0
C.K. Shui , W.T. Reynolds Jr , G.J. Shiflet , H.I. Aaronson
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引用次数: 15
Discontinuous precipitation and coarsening of lamellar cellular precipitate in Fe-Zn alloys 铁锌合金中片层胞状析出物的不连续析出和粗化
Metallography Pub Date : 1988-02-01 DOI: 10.1016/0026-0800(88)90034-1
Shant P. Gupta, G.T. Parthiban
{"title":"Discontinuous precipitation and coarsening of lamellar cellular precipitate in Fe-Zn alloys","authors":"Shant P. Gupta,&nbsp;G.T. Parthiban","doi":"10.1016/0026-0800(88)90034-1","DOIUrl":"10.1016/0026-0800(88)90034-1","url":null,"abstract":"<div><p>The initiation of cellular reaction, formation of cells, and their development have been studied in two Fe-Zn alloys containing 20 and 25 wt.% zinc. Optical microscopy was utilized to study the cellular structure developed during aging in the temperature range 400–520°C. Deflection of the grain boundary was observed to be associated with the nucleation of soluterich phase. From the observation of grain boundary migration into puckered configuration and nucleation of new lamellae at such positions of the boundary, it is evident that the cellular phase transformation occurs in this alloy by the pucker mechanism proposed by Tu and Turnbull [1]. Multiplication of the lamellae occurred by nucleation of the new lamellae in the recess of the grain boundary and by branching.</p><p>Aging for longer periods resulted in a second cellular reaction or discontinuous coarsening, which decomposed the primary lamellar product into a coarse lamellar structure of the same two phases. The secondary cells were observed to nucleate at three different regions; namely, at the original position of the grain boundary, at the impinged region of two primary cells, and at the interface between the migrating cell boundary and original position of the grain boundaries.</p></div>","PeriodicalId":100918,"journal":{"name":"Metallography","volume":"21 1","pages":"Pages 11-32"},"PeriodicalIF":0.0,"publicationDate":"1988-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0026-0800(88)90034-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73250133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
A computer program for plotting stereographic projections 用于绘制立体投影的计算机程序
Metallography Pub Date : 1988-02-01 DOI: 10.1016/0026-0800(88)90035-3
Werner Prantl
{"title":"A computer program for plotting stereographic projections","authors":"Werner Prantl","doi":"10.1016/0026-0800(88)90035-3","DOIUrl":"10.1016/0026-0800(88)90035-3","url":null,"abstract":"<div><p>A computer program is discussed, which provides automatic plotting of stereographic standard projections of crystals of arbitrary lattice parameters, with any wanted central pole. Poles of crystal directions or planes can be plotted alternatively. Interactive plotting of single poles is also provided. Additionally, for cubic crystals an enlarged plot of the unit triangle can be produced. The program is written in <span>fortran</span> 77 and is readily available from the author.</p></div>","PeriodicalId":100918,"journal":{"name":"Metallography","volume":"21 1","pages":"Pages 33-39"},"PeriodicalIF":0.0,"publicationDate":"1988-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0026-0800(88)90035-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81111252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Strain analysis in machining using metallographic methods 用金相方法分析机加工中的应变
Metallography Pub Date : 1987-11-01 DOI: 10.1016/0026-0800(87)90020-6
C.A. Brown
{"title":"Strain analysis in machining using metallographic methods","authors":"C.A. Brown","doi":"10.1016/0026-0800(87)90020-6","DOIUrl":"10.1016/0026-0800(87)90020-6","url":null,"abstract":"<div><p>Strain patterns in 4340 steel chips created during turning at speeds between 36 and 440 m/min (119 and 1442 sfpm) are examined metallographically. A new method, based on the grain elongation orientation in the chip, is developed for quantification of local strains created during plane strain deformation in the primary and secondary deformation zones. This method is applied to both continuous and to sawtooth type chips. Strains determined by this method compare well with strains computed from chip thickness measurements, but there appear to be systematic differences. Strain localization is evident in chips formed at the higher cutting speeds. This strain localization does not appear to extend to the rake face side of the chip. The shear angle calculated from the strain in the strain-localized regions compares favorably with the orientation of these regions.</p></div>","PeriodicalId":100918,"journal":{"name":"Metallography","volume":"20 4","pages":"Pages 465-483"},"PeriodicalIF":0.0,"publicationDate":"1987-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0026-0800(87)90020-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74477416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Author and Title Indexes for 1987 1987年作者和标题索引
Metallography Pub Date : 1987-11-01 DOI: 10.1016/0026-0800(87)90023-1
{"title":"Author and Title Indexes for 1987","authors":"","doi":"10.1016/0026-0800(87)90023-1","DOIUrl":"https://doi.org/10.1016/0026-0800(87)90023-1","url":null,"abstract":"","PeriodicalId":100918,"journal":{"name":"Metallography","volume":"20 4","pages":"Pages 501, 503-504"},"PeriodicalIF":0.0,"publicationDate":"1987-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0026-0800(87)90023-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92066655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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