Results 11 to 20 of about 13,047 (166)
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT This study demonstrates a new strategy for modifying the boron content to address stress‐relief cracking (SRC) in the 7CrMoVTiB10.10 alloy. First, coarse‐grained heat‐affected zone (CGHAZ) specimens with different boron contents were prepared via simulated welding thermal cycles.
Dongdong Zhang +3 more
wiley +1 more source
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Laser powder bed fusion (LPBF) can fabricate high‐entropy alloys (HEAs) with refined microstructure and enhanced mechanical properties. However, the deformation and fatigue mechanisms of Al‐containing HEAs produced by LPBF remain unclear. In this work, we systematically investigate the tensile properties, deformation mechanisms, and high‐cycle
Dan Zheng +4 more
wiley +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Nickel‐based superalloys (Ni‐based superalloys) have attracted extensive attention in laser additive manufacturing (LAM) due to their capability to directly fabricate complex and high‐performance structural components. However, the rapid melting and solidification inherent to LAM result in intense thermal cycling, which induces high residual ...
Tianxiang Lin +9 more
wiley +1 more source
Wear Resistance of Cast Iron Remelted by Non-Transferred Laminar Plasma Jet [PDF]
, 2004 对在大气压条件下用非转移弧层流等离子体射流熔凝强化处理的W-Mo-Cu铸铁表面,采用光学显微镜、显微硬度计、磨损试验机、扫描电镜等,观察和测试了熔凝试样的表面层组织、硬度、耐磨性和磨损形貌.结果表明,熔凝后铸铁表面为初晶渗碳体和莱氏体组成的过共晶组织 ...
潘文霞, 费群星, 马维
core
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Additively manufactured AlCoFeNi series eutectic high‐entropy alloys (EHEAs) exhibit nonequilibrium dual‐phase microstructure in the as‐printed state, allowing them to be easily tailored through annealing to explore their strength–toughness potential.
Huidong Wu +13 more
wiley +1 more source
Macro-dimension effects and phase transformation ofNi-Mn based high temperature shape memory alloys [PDF]
, 2016 Ni-Mn基形状记忆合金是发现比较早的一种高温形状记忆合金，其具有从高温母相（B2）转变为低温四方马氏体的可逆马氏体转变过程。但是Ni-Mn基合金的多晶脆性极大且其形状记忆效应差，因此关于该体系的研究较少。本论文拟通过添加有利于γ相形成的元素（Cu、Co和Fe），促使合金在均质化处理后呈现塑性的fccγ相组织，其后再研究合金在加热和冷却过程中的相转变行为、微观组织结构和尺寸效应，以及在预变形下的高温形状记忆效应。 本文首先以Ni50Mn50为母合金，根据Cu、Co ...
刘玉鼎
core
Effect of Tempering Temperature on Microstructure and Mechanical Properties of High Co-Ni Secondary Hardening Steel [PDF]
The effects of tempering at 380 ℃- 620 ℃ on the microstructure and mechanical properties of the double-vacuum smelting secondary hardening steel were studied by optical microscope （OM）， scanning electron microscope （SEM）， X-ray diffractometer （XRD）
Pang Xuedong, Liang Xiaodong, Sun Yong, Zhai Yujia, Wen Bo, Xin Zhenfei, Li Jianxin, Wang Rui, Yan Xiaohong
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Effect of cooling rate on the microstructure and corrosion properties of Zn-5Al-0.1RE-xSi alloys [PDF]
, 2016 The effects of cooling rate and Si on the microstructure and corrosion property of the Zn-5Al-0.1 RE alloy were studied by scanning electron microscopy-energy dispersive spectrometry, X-ray diffraction, neutral salt spray test and polarization curves ...
LIU Ya +6 more
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Bioinspired 3D‐Printed NiTi Metamaterials With Bivalve‐Like Crossed‐Lamellar Structures
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Metamaterials demonstrate unique mechanical properties and functional performance owing to their distinctive topological spatial structures. In this study, by mimicking the natural Saxidomus purpuratus shell, bioinspired crossed‐lamellar architectures with interlamellar apex angles ranging from 60° to 150° were designed and fabricated in NiTi ...
Yu Chen +9 more
wiley +1 more source
Preparation of high-density iron soft magnetic materials by HVC technology [PDF]
, 2016 High density green compacts of annealed iron powder with a density of 7.70 g·cm-3 were prepared by high velocity compaction(HVC) combined with powder annealing.
DONG Guo-qiang +5 more
core +1 more source