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12篇 您的检索式:作者名="David K MATLOCK"
    题名 作者 年代 出处 被引量
1Q&P钢热处理工艺的开发进展(英文)显示文摘Q&P钢的工艺概念已提出了有些年了,它作为一种热处理工艺,生产的组织具有马氏体和富C的亚稳残余奥氏体。工艺包括:控制淬火形成部分的马氏体,然后热处理以使C从过饱和的马氏体中转移到残余奥氏体中。潜在的应用包括具有好的成型性和抗断裂的高强度钢。应用该工艺可生产薄板和厚板,以及用从长锻材生产热处理元件,甚至于铸铁。自2003年一直在实验室研究,早期的工作结果已有发表。近期的研究主要集中于机理方面的细节。国际范围的独立团队在此研究领域也有很多进展。John G Speer David K Matlock 2009世界钢铁2009,9,1:21
2汽车用钢的最新研究进展显示文摘为满足提高燃油效率及汽车'轻量化'等方面持续的需求,学术界及工业领域一直都很重视钢铁及其替代材料的研发,这两类材料之间的竞争始终十分激烈。对汽车用钢在北美的研究现状进行了概述,并重点介绍了几种冷轧和热轧汽车用钢的研究进展及其生产情况。新一代先进高强钢的发展将依然令人关注并充满机遇。John G Speer David K Matlock Emmanuel de Moor Grant A Thomas 周澍(译) 李晟(校) 2013世界钢铁2013,,5:10
3Mechani- eal behavior of an intercritically annealed and isothermally transformed low C alloy steel with ferrite-bainite-austenite mi- crostructures 显示文摘Sakuma Yasuharu Matlock David K Krauss George 1990Journal of Heat Treating1990,8,2:1
4Titanium Nitride Precipitation in Thin-Slab Cast High-Strength Low-Alloy Steels显示文摘Michael T Nagata John G Speer David K Matlock 2002Metallurgical and Material Transaction A2002,33,10:1
5The'Quenching and Partitioning'Process:Background and Recent Progress显示文摘John G Speer Fernando C Rizzo Assun??o David K Matlock 2005Materials Research2005,8,4:1
6Zinc-based steel coating system: Metallurgy and performance 显示文摘George Krauss David k Matlock 1990Mineral Metals and Materials Society1990,30,5:1
7The quenching and partitioning: process: background and recent progress显示文摘Speer John G Rizzo Fernando C Matlock David K 2005Materials Research2005,8,4:1
8Development of microstruetural banding in low-alloy steel with simulated Mn segregation 显示文摘Ted F Majka David K Matlock George Krauss 2002Metallurgical and materials transactions2002,33,6:1
9Surface Processing to hnprove the Fatigue Resistance of Advanced Bar Steels for Automotive Applications 显示文摘David K Matlock Khaled A Alogab Mark D Richards 2005Materials Research2005,8,4:1
10Development of microalloyed steels for high temperature carburizing显示文摘The potential for use of microalloy additions to suppress abnormal austenite grain growth and produce steels with enhanced bending fatigue resistance after high temperature vacuum carburizing was investigated in a series of Ti-modified SAE 8620 steels with w(niobium) additions up to 0.1%.Results are considered from a series of papers at the Advanced Steel Processing and Products Research Center on the effects of Nb content,heating rate, rolling history,and processing temperature on the evolution of austenite grain structures in carburizing steels. Emphasis is placed on understanding the effects of alloying and processing on each stage in the annealing process including the as received laboratory rolled conditions,during the onset of carburizing after annealing at different heating rates,and after annealing for various times at carburizing temperatures up to 1 100℃.Heating rate to the carburizing temperature was shown to be an influential variable and suppression of abnormal grain growth was dependent on the development of a critical distribution of fine NbC precipitates,stable at the austenitizing temperature.The importance to industrial carburizing practice of heating rate effects on precipitates and austenite grain size evolution are discussed and correlated to selected data on fatigue performance.David K MATLOCK John G SPEER Steven G JANSTO Marcos STUART 2010Baosteel Technical Research2010,4,S1:0
11Annealing Response of Cold-Rolled Vanadium Microalloyed Sheet Steels显示文摘Vanadium microalloying is widely employed in hot-rolled HSLA products;because of its relatively high solubility in austenite,vanadium plays a special role in thin-slab cast hot-rolled products where reheating is limited prior to direct-rolling.In cold-rolled and annealed sheet steels,vanadium technology has been employed in bake-hardenable drawing-quality steels,and in HSLA products.Recent studies have investigated the continuous and batch annealing response of vanadium-containing cold-rolled HSLA steels,with an emphasis on aluminum and nitrogen variations (because of the special importance of nitrogen in vanadium microallyed steels,and interesting interactions between vanadium,aluminum and nitrogen).The present contribution reviews some key aspects of vanadium-microalloyed coldrolled sheet steels,and highlights the results of selected studies showing the influence of steel composition and processing.John G Speer David K Matlock Robert J Glodowski 2011Journal of Iron and Steel Research(International)2011,18,S1:0
12Ultra-high strength sheet steel property developments显示文摘Conventional advanced high strength steels(AHSS) such as dual-phase,TRIP and martensitic sheet products have undergone extensive development and substantially increased implementation in automobile structures over the past few years.Efforts are now underway to extend these improvements and develop steels with even greater strengths and formability.A variety of alloy/process/microstructure/property approaches aimed at next generation AHSS properties are highlighted here.One approach involves the quenching and partitioning process,originally conceived at the Colorado School of Mines,but now being investigated around the global automotive steel development community.Early implementation efforts are underway,and new results demonstrate the capability to obtain ultra-high strength levels with usable ductility.Viewing the field more broadly,it appears that several approaches are converging,and it is likely that additional attention will continue to be placed on expanding the allowable range of austenite stabilizing elements.John G SPEER Emmanuel De MOOR David K MATLOCK 2010Baosteel Technical Research2010,4,S1:0
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