关于若干钢铁生产问题的探讨

科学发展观要求我们要尊重冶金学的基本原理研究钢铁生产,实事求是地对待生产过程中出现的各类问题,不掩盖矛盾,不回避矛盾,正视现实问题,用科学、合理的方法加以解决.目前,在钢铁生产中出现了一些现象,就是不能面对现实,不能真实反映生产一线情况,我们应尽快以予扭转和纠正.     

会议与展览会

“世纪之交的焊接”会议，焊接、冶金学和相近工艺问题，第3届莫斯科国际创新和投资沙龙，德国焊接联合会2003年柏林全会议题。[编者按]     

再谈冶金学中使用国际单位制的若干问题

讨论了近年来在冶金书刊中作为国际单位制推行的质量分数和传统的质量百分浓度的关系，指明了出现计算错误的可能性，并联系热力学函数的标准状态进行了分析。也提出了冶金学中使用国际单位制目前还存在的若干问题。     

人工智能被应用于粉末冶金制品的开发与表征北大核心

美国金属粉末工业联合会已经评选出2021年优秀金相奖,获奖论文的题目是:人工智能被应用于粉末冶金制品的开发与表征,作者是美国拉瓦尔(Laval)大学的Simon Gélinas、Gabrielle Laramée和Carl Blais。现在这篇论文已经可以从美国粉末冶金学会的网站下载,并已被收录于《2021年粉末冶金与颗粒材料进展》论文集。     

Press Releases for GIFA/METFC/THERMPOCESS/NEWCAST 2007

Nomen est omen: Under the motto "The Bright World of Metals"the four international technology trade fairs GIFA, METEC,THERMPROCESS and NEWCAST drew to a successful close on Saturday. Over 1 700 companies, associations and research institutes presented the latest innovations in the areas of foundry technology, castings, metallurgy and thermal process engineering in Düsseldorf.     

Study on microstructure of Fe-Cr-C-Ni-B-Si coating formed by plasma jet surface metallurgy

The technical connotation of surface metallurgical technology by DC-Plasma-Jet is a kind of rapid, non- equilibrium metallurgical process which is similar to powder metallurgy. Accordingly the specialized equipment is developed all by ourselves, which is not subjected to limitation of solubility, melting point, density of constituents, therefore pre-alloy powders are not needed. The plasma surface metallurgical coating using Fe-Cr-C-Ni-B-Si mixed alloy powders has good wettability with substrate material. The metallurgical coating has apparent characteristics of rapid and layered crystallization from planar crystal-cell to dendritic transition zone at the interface, from dendritic crystal to equiaxed crystal in the midst, from equiaxed crystal to spike crystal on the surface. Its metastable microstructure is complex phase of supersaturated γ- （ Fe, Ni ） dendritic crystal solutioning great amount of alloy element and interdendritic eutectic structure （ Cr, Fe） γ （ C, B） 3 and T-（Fe,Ni）.     

Guide for Authors

ACTA METALL. SIN. (Eng. Lett.) is published bimonthly and mainly contains short reports of significant, original and timely researches which reflect new progress in metallurgy, materials science and engineering fields, including materials physics, physical metallurgy and process metallurgy covering the areas of mining and ore dressing, production metallurgy, foundry, metal working, testing methods, powder metallurgy, composites, welding and joining, oxidation and corrosion, etc.     

锻钢轧辊的制造

由于板带材对尺寸公差、表面和组织结构要求很严,因而对锻钢轧辊的质量要求越来越高。锻钢轧辊的质量还直接影响着轧机的生产率和成材率。高速、高轧制力更对锻钢轧辊提出了新的要求。此外,许多轧材用     

Pressure sintering of W-15wt.%Cu alloys prepared by mechanical alloying as a subsequent densification treatment method

1. Introduction W-Cu alloys are widely used in many fields due to their superior properties [1]. With the rapid de-velopment of technology, more demands are being made on the W-Cu alloys. For instance, higher heat conductivity, lower thermal expansion coefficient, and more rigorous air tightness are required when these alloys are used for electronic package materi-als, such as heat sink materials. Especially, the re-quirement of more rigorous air tightness means that the W-Cu alloys must pos…