共查询到20条相似文献,搜索用时 110 毫秒
1.
MICROSTRUCTURE AND DECOMPOSITION OF RS Al-Fe-Cr-Zr ALLOY 总被引:1,自引:0,他引:1
MICROSTRUCTUREANDDECOMPOSITIONOFRSAl-Fe-Cr-ZrALLOY¥XiaoYude;LiShongrui;XieYongan;XuYiheng(DepartmentofMaterialsScienceandEngi... 相似文献
2.
3.
CRYSTALSTRUCTUREOFALONG-PERIODORDEREDPHASEINFe-CMARTENSITEANDCOMPUTERSIMULATIONOFITSELECTRONDIFFRACTIONPATTERNSRENXiaobing;WA... 相似文献
4.
KINETICSOFTHERMALDECOMPOSITIONOFAMMONIUMTHIOTUNGSTATEOFGRANULARITY62~72μmINN_2XingPengfei;ZhaiYuchun;TianYanwen;ChaoYuesheng;?.. 相似文献
5.
EVOLUTIONOFMICROSTRUCTUREINOXIDATIVEGROWTHOFAl_2O_3/AlALLOYCOMPOSITES¥XiaChangqing;JinZhanpeng(DepartmentofMaterialsScienceand... 相似文献
6.
CATALYTICEFFECTOFFORMICACIDUPONAMORPHOUSCHROMIUMELECTRODEPOSITIONWangXianyou;JiangHanying;GuoBingkun(InstituteofMetallurgical... 相似文献
7.
EFFECTOFMICROSTRUCTURESONCYCLIC-OXIDATIONBEHAVIOUROFTiAlALLOYZhouKechao;HuangBaiyun;QuXuanhui;HeYuehui;KongGaoning(PowderMeta... 相似文献
8.
ROOM-TEMPERATUREMECHANICALPROPERTIESOFTiAl+CeALLOYS¥ChenShiqi;QuXuanhui;HuangBaiyun;LeiChangming(PowderMetallurgyResearchinst... 相似文献
9.
DEVELOPMENTOFANEWGENERATIONOFADDITIVESFORALUMINIUMROLLINGLUBRICATIONMaoDaheng;XiaoGang;MaWenhong(CollegeofElectro-mechanicalE... 相似文献
10.
EFFECTSOFTWO-STEPHEAT-TREATMENTONMICROSTRUCTUREANDPROPERTIESOFTiAlINTERMETALLICS¥Kong,Gaoning;Huang,Baiyun;Qu,Xuanhui;Lei,Cha... 相似文献
11.
12.
13.
14.
采用快速凝固粉末冶金技术制备热挤压Mg_(80)Cu_(10)Y_(10)合金棒材,研究了快速凝固Mg_(80)Cu_(10)Y_(10)合金薄带及热挤压后合金的相结构,并对热处理工艺对合金棒材组织结构及力学性能的影响进行了分析.研究表明,采用单辊快速凝固法在辊速为1800 r/min下制备的Mg_(80)Cu_(10)Y_(10)合金薄带为完全非晶态;在热挤压过程中Mg_(80)Cu_(10)Y_(10)合金中有Mg_2Cu和Mg晶体相析出,其显微硬度比薄带有所提高,这与合金中细小Mg_2Cu颗粒的弥散析出有关;在450 ℃保温4 h后的热挤压Mg_(80)Cu_(10)Y_(10)合金中没有新相析出;随着热处理温度的升高或保温时间的延长,由于Mg_2Cu颗粒出现重溶及聚集长大现象,使得热挤压Mg_(80)Cu_(10)Y_(10)合金的显微硬度表现出逐渐下降的变化趋势. 相似文献
15.
High temperature deformation behavior and mechanism of spray deposited A1-Fe-V-Si alloy 总被引:1,自引:0,他引:1
Al-8.5Fe-1.3V-1.7Si alloy was prepared by spray deposition and hot extrusion. The high temperature plastic deformation behavior of the spray deposited A1-8.SFe-1.3V-1.7Si alloy was investigated in the strain rate range of 2.77× 10^4-2.77×10^-2 s^-1 and temperature range of 350-550℃ by Gleebe-1500 thermomechanical simulator. The mechanism of the high temperature plastic deformation of the alloys was studied by TEM associated with the analysis of Rosler-Artz physical constitutive relationship based on the model of dislocation detaching from dispersion particles. The results show that A1-Fe-V-Si alloy has low strain hardening coefficient, and even exhibits work softening. Stress exponent n and activation energy Ω were calculated based on Zener-Hollomon relation and Rosler-Artz physical model respectively. The Rosler-Artz physical model can give a good prediction for the abnormal behavior of high temperature deformation of spray deposited A1-Fe-V-Si alloy, that is, n larger than 8 and Ω higher than 142 kJ/mol. However, because of the highly refined microstructure, the high temperature deformation behavior of spray deposited Al-Fe-V-Si alloy deviates more or less from the law predicted by using Rosler-Artz physical 相似文献
16.
Rapidly solidified hypereutectic Al-Si alloys were prepared by powder hot extrusion.By eliminating vacuum degassing procedure.the fabrication routine was simplified.The tensile fracture mechanisms at room temperature and elevated temperature were investigated by SEM fractography.Compared with KS282 casting material,the tensile strength of rapidly solidified Al-Si alloy is greatly improved due to silicon particles refining while its density and coefficient of thermal expansion are lower.than those of KS282.The wear resistance of RS AlSi is better than that of KS282. 相似文献
17.
MICROSTRUCTUREANDMECHANICALPROPERTIESOFRAPIDLYSOLIDIFIEDAl-FeBASEDALLOYSW.J.Park;S.Ahn;R.Schmees;andNackJ.Kim(1)(CenterforAdv... 相似文献
18.
深冷处理对Al-Fe-V-Si耐热铝合金力学性能的影响 总被引:1,自引:0,他引:1
研究了深冷处理对喷射沉积耐热铝合金8009的影响。结果表明,深冷处理合金的室温强度从405.9MPa rjymgc 453.4MPa,高温强度从196.8MPa提高到208.4MPa,同时晶体(111)面衍射明显加强。 相似文献
19.
微量元素对快冷高硅铝合金粉末特性的影响 总被引:3,自引:0,他引:3
制备了含微量磷元素的Al22Si合金粉末。研究了粉末形貌、粒度大小与分布,以及粉末显微组织,并初步探讨了微量磷对合金粉末特性影响的机理。结果表明,微量磷元素降低了粉末氧含量。其中含0.04%磷的快冷Al22Si合金粉末球形粉末较高,平均粒度最小,粉末中初晶硅得到了进一步细化。 相似文献
20.
工艺参数对静液挤压2024铝合金纳米晶组织性能的影响 总被引:1,自引:1,他引:0
实验研究了以快速凝固和机械合金化复合工艺制备的2024 铝合金纳米晶粉末为原料, 采用热静液挤压工艺在不同挤压工艺条件下固结成形的挤压态材料的显微组织与力学性能, 探讨了作为主要工艺参数的挤压温度和挤压比对材料组织性能的影响规律及其原因。在此基础上, 进一步确定了2024 铝合金纳米晶粉末热静液挤压固结成形时的挤压温度与挤压比的合理取值范围 相似文献