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摘要：
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研究了不同含氢量对Ti600合金的热塑性及力学性能的影响规律。分析了变形温度、变形程度和应变速率对流动应力的影响。研究发现,Ti600合金置氢处理后,峰值应力明显降低,对应变速率的敏感程度有所降低,对温度变化的敏感程度降低。当氢含量为0.2%时Ti600合金表现出较低的变形抗力和较好的成形性能。
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The high temperature mechanical behavior of Ti600 alloy with different hydrogen fractions was studied.The effect of deforming temperature,deformation degree and strain rate on flow stress were analyzed.It was found that when Ti600 alloy with different hydrogen fractions,the flow stress is reduced obviously,and strain-rate sensitivity and temperature sensitivity are also reduced.When the quantity of hydrogen is 0.2%,Ti600 alloy hydrogenated has presented good ductility properties and low flow stress.
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作者简介：
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参考文献：
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[1]苏彦庆,骆良顺,毕维升.置氢对Ti6Al4V合金室温组织的影响[J].材料科学与工艺,2005,13(1):30-40.
[2]Jeoung H K,Semiatin S L,Chong S.Constitutive analysisof the high-temperature deformation mechanisms of Ti-6Al-4V alloy[J].Materials Science and Engineering A,2005,394:355-388.
[3]Ilyin A A,Skvortsova S V,Mamonov A M,Effect of ther-mohydrogen treatment on the structure and properties of tita-nium alloy castings[J].Metal Science and Heat Treatment,2002,44(5-6):185-189.
[4]Sundaram P A,Bau D.Effect of hydrogen on the elasticmodulus and hardness of gamma titanium aluminides[J].Script Materialia,1999,41(8):839-845.
[5]洪权,张振祺,杨冠军.Ti600合金的热机械加工工艺与组织性能[J].稀有金属材料与工程,2005,34(8):1134-1137.
[6]戚运连,曾卫东,赵永庆.Ti600合金的高温本构方程[J].热加工工艺,2006,35(17):5-8.
[7]龚沛,孙东立,李中华.TC4钛合金渗氢后显微组织特征[J].内蒙古工业大学学报,2006,25(3):190-194.
[8]崔文方,洪权.Ti-1100/0.1Y高温钛合金等温热变形行为[J].东北大学学报,2003,24(6):570-576.
[9]Hong Quan,Qi Yunlian,Zhao Yongqing.Effect of rollingprocess on microstructure and properties of Ti600 alloy plates[J].Rare Metal Materials and Engineering,2005,34(8):1334-1337.
[10]Zhang Zhenqi,Luo Guozhen,Hong Quan.Microstructuresobservation and mechanical properties test of near alpha tita-nium alloy Ti600[J].Journal of Aeronautical Materials,1999,19(4):6-10.
[11]Zhang Zhenqi,Hong Quan,Yang Guanjun.Research on mi-crostructure of Ti600 alloy after creep test[J].Journal ofMaterials Engineering,2000,(10):18-21.
[12]史廷,陈森灿.TC4钛合金高温锻造本构模型的实验研究[J].锻压技术,1999,24(3):22-24.
[13]吴伯杰,陈森灿.TC11钛合金高温流动特性及热变形参数对组织影响的试验研究[J].锻压技术,1992,17(2):11-16.
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