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Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science最新文献

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Study of the Formation Mechanism of A-Segregation Based on Microstructural Morphology 基于微观组织形态学的a -偏析形成机理研究
IF 2.8 3区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science
Pub Date : 2018-04-09 DOI: 10.1007/S11661-018-4609-0
Zhang Zhao, Bao Yuchong, Liu Lin, P. Song, Li Ri
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引用次数: 2
The Influence of Annealing Temperature and Time on the Formation of δ-Phase in Additively-Manufactured Inconel 625. 退火温度和时间对添加铬镍铁合金625中δ相形成的影响。
IF 2.2 3区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science
Pub Date : 2018-01-01 DOI: 10.1007/s11661-018-4643-y
M R Stoudt, E A Lass, D S Ng, M E Williams, F Zhang, C E Campbell, G Lindwall, L E Levine

This research evaluated the kinetics of δ-phase growth in laser powder bed additively-manufactured (AM) Inconel 625 during post-build stress-relief heat treatments. The temperatures ranged between 650°C and 1050°C, and the times from 0.25 to 168 hours. The presence of δ-phase was verified for each temperature/time combination through multiple techniques. A conventional time-temperature-transformation diagram was constructed from the time-temperature data. Comparison to the growth in wrought IN625 with a similar nominal composition revealed that δ-phase formation occurred at least two orders of magnitude faster in the AM IN625. The results of this study also revealed that the segregated microstructure in the as-built condition has a strong influence on the kinetics of δ-phase formation in AM IN625 as compared to a homogenized material. Since control of the δ-phase growth is essential for reliable prediction of the performance of IN625 components in service, avoiding heat treatments that promote the formation of δ-phase in AM components that are not homogenized is highly recommended. This will be particularly true at elevated temperatures where the microstructural stability and the consistency of mechanical properties are more likely to be affected by the presence of δ-phase.

本研究评估了在构建后应力消除热处理过程中，激光粉末床添加制造（AM）铬镍铁合金625中δ相生长的动力学。温度在650°C到1050°C之间，时间在0.25到168小时之间。通过多种技术验证了每个温度/时间组合中δ相的存在。根据时间-温度数据构造了传统的时间-温度变换图。与具有类似标称成分的锻造IN625中的生长相比，表明AM IN625中δ相的形成速度快了至少两个数量级。本研究的结果还表明，与均质材料相比，竣工条件下的偏析微观结构对AM IN625中δ相形成的动力学有很大影响。由于控制δ相生长对于可靠预测IN625在役部件的性能至关重要，因此强烈建议避免在未均匀化的AM部件中促进δ相形成的热处理。在高温下尤其如此，在高温下，δ相的存在更有可能影响微观结构的稳定性和机械性能的一致性。
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引用次数: 0
Formation of the Ni3Nb delta-phase in stress-relieved Inconel 625 produced via powder-bed laser fusion additive manufacturing 粉末床激光熔融增材制造去应力Inconel 625中Ni3Nb δ相的形成
IF 2.8 3区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science
Pub Date : 2017-08-23 DOI: 10.1002/DOI:
B. Natarajan, A. Krishnamurthy, C. Emiroglu, Amanda L. Forster, E. Foster, C. Weder, D. Fox, J. Obrzut, J. Gilman
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引用次数: 1
Ti‐6Al‐2Sn‐4Zr‐6Moにおける応力腐食脆化の転位機構 Ti - 6al - 2sn - 4zr - 6mo应力腐蚀脆化的换位机构
IF 2.8 3区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science
Pub Date : 2016-01-01 DOI: 10.31399/asm.ad.ti0064
P. Tamara, A. Vassili, S. Ananthi, R. David, C. Trevor, Dye David
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引用次数: 0
The Solubility of Aluminium in Cryolitic Melts 铝在冰晶熔体中的溶解度
IF 2.8 3区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science
Pub Date : 2016-01-01 DOI: 10.1007/978-3-319-48156-2_6
R. Ødegȧrd, Å. Sterten, J. Thonstad
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引用次数: 3
Foreword. Coatings for Structural, Biological, and Electronic Applications 前言。结构、生物和电子应用的涂料
IF 2.8 3区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science
Pub Date : 2011-11-01 DOI: 10.1007/S11661-010-0582-Y
N. Ravindra, N. Michael, R. Narayan, C. Kim, G. Krumdick
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引用次数: 0
Foreword: Structural Materials for the Americas Proceedings of the First TMS-ABM International Materials Congress Rio de Janeiro, July 26–30, 2010 前言:第一届TMS-ABM国际材料大会美洲会议论文集，里约热内卢，2010年7月26-30日
IF 2.8 3区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science
Pub Date : 2011-10-01 DOI: 10.1007/S11661-011-0771-3
S. Monteiro, M. Meyers
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引用次数: 1
Discussion of “Prediction of Shrinkage Pore Volume Fraction Using a Dimensionless Niyama Criterion” “用无量纲尼山准则预测收缩孔隙体积分数”的讨论
IF 2.8 3区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science
Pub Date : 2009-10-17 DOI: 10.1007/S11661-009-0056-2
K. SigworthGeoffrey
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引用次数: 9
Production of Ni3Ti−TiC x intermetallic-ceramic composites employing combustion synthesis reactions 燃烧合成反应制备Ni3Ti−TiC x金属间陶瓷复合材料
IF 2.8 3区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science
Pub Date : 2006-03-01 DOI: 10.1007/S11661-006-1024-8
D. Burkes, G. Gottoli, J. J. Moore, H. Yi
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引用次数: 6
Tensile behavior of friction-stir-welded A356-T6/Al 6061-T651 bi-alloy plate A356-T6/Al 6061-T651双合金摩擦搅拌焊板的拉伸性能
IF 2.8 3区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science
Pub Date : 2004-09-01 DOI: 10.1007/S11661-004-0231-4
Sunggon Lim, Sangshik Kim, Chang Gil Lee, Sung-Joon Kim
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引用次数: 54
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