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Alloy 20不锈钢薄板等离子弧焊接工艺研究赵斌,王宾宾,王小华中国船舶重工集团公司第七二五研究所摘 要:对Alloy 20不锈钢薄板进行了等离子弧焊接工艺试验研究.结果表明,采用等离子弧焊接方法,ERCr Ni Mo-3焊材及合理的焊接工艺参数,等离子弧焊接工艺可用于Alloy 20不锈钢薄板的焊接,焊接接头各项性能均能满足要求.关键词:Alloy 20;不锈钢薄板;等离子弧焊接;......
第二相粒子与织构对高强Cu-Ni-Si系合金薄板各向异性的影响汪志刚1,冯兴宇1,杨泰胜1,张迎晖1,肖翔鹏21. 江西理工大学材料科学与工程学院2. 江西理工大学国家铜冶炼及加工工程技术中心摘 要:利用利用X射线衍射,电子背散射衍射和透射电子显微镜等手段研究了Cu-Ni-Si系合金在不同固溶温度下第二相与织构对其平面各向异性的影响.结果表明:随固溶温度的升高,合金强度和伸长率均出现先升高后降低的趋势,且存在明显的各向异性;800℃固溶时,Cu’和S’为主织构,部分形变晶粒诱发少量Brass,Goss和{011}<511>取向的形成,使得合金各向异性减弱;高温固溶时(≥850℃),晶粒发生完全再结晶,Cu’和S’织构强度显著增加,Brass等织构减弱甚至消失,各向异性增强;850℃固溶时效后形成......
. Microstructure and properties of a novel Cu-Ni-Co-Si-Mg alloy with super-high strength and conductivity [J]. Materials Science and Engineering A, 2019, 744: 754-763. DOI: 10.1016/ j.msea.2018.12.075. [22] LEI...) structure, and its orientation relationship with the Cu matrix was (020)Cu//(001)NiMn and [001]Cu//[010]NiMn. Although some literatures [13-15] reported that the Cu-Ni binary alloy had a good corrosion......
)Abstract:Stainless die with micro-groove and micro-hole have been designed and manufactured, which has been used to study superplastic microforming of 2091Al-Li alloy by means of superplastic forming... micro-rib specimen, behavior of material could be understood well.Key words:superplasticity; microforming; extrusion; 2091Al-Li alloy......
高强度Cu-Ni-(Al)-Si合金的组织和性能黎三华1,2,李周1,2,雷前1,汪明朴1,申镭诺1,潘志勇1,刘会群21. 中南大学2. 有色金属材料科学与工程教育部重点实验室摘 要:通过光学显微镜,维氏硬度计,双臂电桥,扫描电子显微镜,透射电子显微镜等测试手段对Cu-5.2Ni-1.2Si和Cu-5.2Ni-1.5Al-1.2Si合金的组织结构和性能进行了表征与测试.结果表明:2种合金的铸态组织均为发达的树枝晶组织,包括白亮的枝晶区,非平衡凝固相粒子及中间过渡区.其中枝晶为富Cu区,凝固相为富Ni和Si区,Al元素则比较均匀地分布在铸态组织中.峰值时效后,Cu-5.2Ni-1.5Al-1.2Si合金具有比Cu-5.2Ni-1.2Si合金更高的硬度.Al元素不但促进了Ni2Si的沉淀析出,还形成了......
Trans. Nonferrous Met. Soc. China 22(2012) s656-s660 Microforming of superplastic 5083 aluminum alloy Md. Abu Mowazzem HOSSAIN1, Sung-Tae HONG1, Kyu-Yeol PARK1, Young-Sang NA2 1. School of Mechanical...: The mechanical behavior of superplastic 5083 aluminum alloy during microforming process was investigated by finite element analysis. A micro V-groove die was modeled to analyze the effects of forming......
铜基引线框架材料研究进展 田保红1,张毅2,贾淑果1,范莉1,刘平1 (1.河南科技大学材料科学与工程学院,河南,洛阳,471003;2.西安理工大学材料科学与工程学院,陕西,西安,710048) 摘要:引线框架是集成电路中极为关键的部件之一,其主要功能是支撑芯片,散失工作热量和连接外部电路等.铜合金以其优良的性能成为重要的引线框架材料.本文综述了铜基引线框架的国内外研究现状,并重点介绍了在Cu-Ni-Si合金中加入微量合金元素P,Cr,Ag的微合金化研究成果. 关键词:集成电路; 引线框架; Cu-Ni-Si合金; [全文内容正在添加中] ......
Study on Thermomagnetic Treatment Fe-25.5Cr-12Co Permanent Magnetic Alloy Zhen Liang1,GAO Run-sheng2,ZHU Dan-yang1,SUN Xue-yin1,SHAO Wen-zhu1,XU Ren-gen1 (1.Technology and Development Centre... Fe-25.5Cr-12Co alloy by different process of thermomagnetic treatment were investigated. It is found that magnetic properties are sensitive to parameters of thermomagnetic treatment process in magnetic......
and solidification behavior of Cu-Ni-Si alloys with four different Cu contents systematically under near-equilibrium solidification conditions. HUANG and MA [5] researched the precipitation in Cu-Ni-Si-Zn alloy.... Microstructure and solidification behavior of Cu-Ni-Si alloys [J]. Materials Characterization, 2009, 60: 114-118. [5] HUANG Fu-xiang, MA Ju-sheng. Precipitation in Cu-Ni-Si-Zn alloy for lead frame [J......
is the theory of the characteristic crystals and points out direction of alloy design. The theory has been successfully applied to Ag–Cu alloys [1, 2] and Au–Cu alloys [3–6] in FCC structure, Ti–Al... J. Cent. South Univ. (2018) 25: 1573-1581 DOI: https://doi.org/10.1007/s11771-018-3849-x Derivation and application of concentration formula of alloy genes of DO3-type in BCC alloy systems PENG......
