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Effect of initial microstructure on the creep behavior of

Y.B.Xu's research works Chinese Academy of Sciences

Y.B.Xu's 77 research works with 2,183 citations and 2,628 reads,including Microstructure and Plastic Instability of Mg-4.3Li-1.08Y-5.83Zn AlloyThe effects of minor alloying additions and microstructure This dissertation examined the effects of minor alloying additions and microstructure on the creep behavior of a Ti-47Al alloy (all compositions in at%).There were several objectives of this research.The first was to determine solid solution strengthening and precipitation strengthening effects of C and Si on Ti-47Al.Solid solution strengthening effects were studied at lower alloying levels The effect of stress state on rafting mechanism and cyclic Metallographic observations revealed that both the rafting behavior and topological inversion behavior of / microstructure occurred during the cyclic creep tests.The specific connectivity number of the phase N A () was introduced to assess the extent of these microstructure evolutions,which was found to be related to the

The effect of particle reinforcement on the creep behavior

The influence of matrix microstructure and reinforcement with 15 vol pct of TiC particles on the creep behavior of 2,219 aluminum has been examined in the temperature range of 150 C to 250 C.At 150 C,reinforcement led to an improvement in creep resistance,while at 250 C,both materials exhibited essentially identical creep behavior.The Effect of Multiaxial Stress State on Formation of The effect of multiaxial stress state caused by a n otch effect on microstructure degradation of single crystal nickel based superalloy CMSX-4 was s tudied during creep at a temperature of 950 Effect of initial microstructure on the creep behavior of#176;C,under constant nominal stress of 120 MPa for 50 0 and 1000 h.THE EFFECT OF THERMOMECHANICAL PROCESSING ONeffect of cyclic cold rolling on the microstructure and high-temperature creep behavior was evaluated.The overall goal was to change the grain boundary structure in a manner that would improve the minimum creep rates and increase the creep rupture life.Experimental There are at least two different methods employed for altering GBCD.

Some results are removed in response to a notice of local law requirement.For more information,please see here.12345NextEffect of initial microstructure on the creep behavior of

Request PDF Effect of initial microstructure on the creep behavior of TMCP EH36 and SM490C steels Two steels,TMCP EH36 and SM490C,were prepared with the same composition but different Previous123456NextEffect of Ageing on Microstructure,Mechanical Properties A study on the mechanical property changes and the creep behavior of a Ni-based alloy 740H on ageing at 800 Effect of initial microstructure on the creep behavior of#176;C for 10250 hours is conducted.Microstructural characterization reveals that the alloy initially contains fine phase and carbide precipitates within grains and at grain boundaries.Ageing does not affect the grain size but coarsens the phase and facilitates further Formability and Performance of Al-Zn-Mg-Cu Alloys with Mar 14,2017 Effect of initial microstructure on the creep behavior of#0183;The initial temper may directly affect the deformation behavior and material performance in creep age forming (CAF) process.Five heat treatment states are selected as the initial tempers for CAF,namely,solution,peak-aging (T6),over-aging (T73),retrogression and re-solution.The formability and performance of an Al-Zn-Mg-Cu alloy with the above initial tempers in creep aging process are

Effects of cold rolling deformation on microstructure

Effects of cold rolling deformation on the microstructure,hardness,and creep behavior of high nitrogen austenitic stainless steel (HNASS) are investigated.Effects of Pre-Stretching on Creep Behavior,Mechanical materials Article Effects of Pre-Stretching on Creep Behavior,Mechanical Property and Microstructure in Creep Aging of Al-Cu-Li Alloy Jin Zhang 1,3,Zhen Jiang 1,Fushun Xu 2,4,* and Mingan Chen 1 1 Light Alloy Research Institute,Central South University,Changsha 410083,China; [email protected] (J.Z.); [email protected] (Z.J.); [email protected] (M.C.)Effects of Pre-Stretching on Creep Behavior,Mechanical materials Article Effects of Pre-Stretching on Creep Behavior,Mechanical Property and Microstructure in Creep Aging of Al-Cu-Li Alloy Jin Zhang 1,3,Zhen Jiang 1,Fushun Xu 2,4,* and Mingan Chen 1 1 Light Alloy Research Institute,Central South University,Changsha 410083,China; [email protected] (J.Z.); [email protected] (Z.J.); [email protected] (M.C.)

Effects of Pre-Stretching on Creep Behavior,Mechanical

The effects of pre-stretching on creep behavior,mechanical properties and microstructure during the creep aging process of Al-Cu-Li alloy were investigated.AA2195 was taken as the representative of Al-Cu-Li alloys.It is found that the total creep strain and strength property of creep aged AA2195 specimens can be improved through effective pre-stretching.Effects of Pre-Stretching on Creep Behavior,Mechanical The effects of pre-stretching on creep behavior,mechanical properties and microstructure during the creep aging process of Al-Cu-Li alloy were investigated.AA2195 was taken as the representative of Al-Cu-Li alloys.It is found that the total creep strain and strength property of creep aged AA2195 specimens can be improved through effective pre-stretching.Effects of Microstructure and Processing Methods on Creep Jul 13,2016 Effect of initial microstructure on the creep behavior of#0183;This review sheds light on the creep properties of AZ91 magnesium alloys with a major emphasis on the influence of microstructure on the creep resistance and underlying creep deformation mechanism based on stress exponent and activation energy.Effects of processing routes such as steel mold casting,die casting,and thixoforming are considered.Roles of a wide range of additional alloying

Effect of the initial microstructure on the deformation

Dec 25,2014 Effect of initial microstructure on the creep behavior of#0183;In this research,the isothermal compression of a new Ti60 alloy with two different initial microstructures was conducted to analyze the effect of the initial microstructure on its deformation behavior,and further to provide a basis for process determination and product quality control based on the primary microstructure of the alloy.Effect of the Prior Microstructure Degradation on theeffect of the prior microstructure degradation on the high temperature/low stress non-isothermal creep behavior of cmsx-4 Effect of initial microstructure on the creep behavior ofni-based single crystal superalloy r Effect of initial microstructure on the creep behavior of#233;mi giraud1,2,jonathan cormier1,z Effect of initial microstructure on the creep behavior of#233;line hervier2,denis bertheau1,ken harris3,jacqueline wahl3,Effect of initial microstructure on the creep behavior of Mar 15,2003 Effect of initial microstructure on the creep behavior of#0183;In this study,not only was the creep behavior investigated,but also the influence of microstructure morphology in creep deformation was examined.In this study,two strengths of 490 MPa steels with very similar composition ( Table 1 ) but different microstructure morphologies were

Effect of initial microstructure on microstructural

Request PDF Effect of initial microstructure on microstructural instability and creep resistance of XD TiAl alloys A number of lamellar structures were produced in XD TiAl alloys (Ti-45 at Effect of boron on creep deformation behavior and The effect of boron on creep deformation behavior and microstructure evolution during creep has been investigated for a tempered martensitic 9Cr-3W-3Co-VNb steel containing boron up to 140 ppm at 650 Effect of initial microstructure on the creep behavior of#176;C (923 K) with the emphasis on long term behavior.CreepEffect of Microstructure on Creep Crack Growth BehaviorIn the present study,the effect of microstructure ( i.e., + and transformed ) on creep crack growth (CCG) behavior of a near-alpha (IMI 834) titanium alloy has been explored at temperatures 550 Effect of initial microstructure on the creep behavior of#176;C and 600 Effect of initial microstructure on the creep behavior of#176;C.For characterizing the CCG behavior of the alloy,both stress intensity factor ( K) and energy integral parameter ( C t Effect of initial microstructure on the creep behavior oflt;/SUB Effect of initial microstructure on the creep behavior ofgt;) were used in the present investigation.

Effect of Microstructure on Creep Crack Growth Behavior

In the present study,the effect of microstructure ( i.e., + and transformed ) on creep crack growth (CCG) behavior of a near-alpha (IMI 834) titanium alloy has been explored at temperatures 550 Effect of initial microstructure on the creep behavior of#176;C and 600 Effect of initial microstructure on the creep behavior of#176;C.For characterizing the CCG behavior of the alloy,both stress intensity factor ( K) and energy integral parameter ( C t Effect of initial microstructure on the creep behavior oflt;/SUB Effect of initial microstructure on the creep behavior ofgt;) were used in the present investigation.Effect of Melt Treatment on the Microstructure and Creep The effect of melt treatment on the microstructure and creep-rupture behavior of M963 superalloy at 1248K under 225MPa has been investigated.The microstructure of the as-cast superalloy without melt treatment consists of solid solution matrix, Effect of initial microstructure on the creep behavior of#180;precipitate,coarse blocky MC carbide and (+ Effect of initial microstructure on the creep behavior of#180;)eutectic.The striking difference in microstructure is that the melt treatment changes the MC Effect of Heat Treatment on the Microstructure and Creep The development of new Mg-Sn based alloys that have shown improved corrosion resistance needs further investigations to develop standard alloys for industrial use.In the present study,the influence of heat treatment was investigated by examining the creep resistance of Mg-Sn and Mg-Sn-Ca alloys at 85 MPa under 135 Effect of initial microstructure on the creep behavior of#176;C identify the best conditions to improve the mechanical properties of such

Effect of Cyclic Damage on the Constitutive Behavior

Comparison of the creep behavior of cycled SAC305 specimens (at 50% load drop) with that of uncycled specimens shows that the effective creep compliance and effective secondary creep strain rate increase significantly.As a point of comparison,the creep resistance of cycled SAC305 specimens is even lower than that of as-reflowed Sn37Pb specimens.Effect of Co on Creep Behavior of a P911 SteelEffect of Co on Creep Behavior of a P911 Steel ALLA KIPELOVA,MARINA ODNOBOKOVA,ANDREY BELYAKOV,and RUSTAM KAIBYSHEV The microstructure and creep behavior of a 3 pct Co modied P911 steel and standard P911 steel were examined.It was shown that the nanoscale M Co on the initial microstructure after heat treatment and the microstructure Effect of Ca addition on microstructure and impression alloys [11,12].Effect of adding Ca on microstructure and creep behavior of MgAlZn alloys has been reported in previous works [13,14].It has been claimed that the increased creep resistance of the alloys can be attributed to the formation of Al2Ca intermetallic compound and suppressing formation of Mg17Al12 phase during the

Effect of Ca addition on microstructure and impression

alloys [11,12].Effect of adding Ca on microstructure and creep behavior of MgAlZn alloys has been reported in previous works [13,14].It has been claimed that the increased creep resistance of the alloys can be attributed to the formation of Al2Ca intermetallic compound and suppressing formation of Mg17Al12 phase during theEffect of Ageing on Microstructure,Mechanical Properties A study on the mechanical property changes and the creep behavior of a Ni-based alloy 740H on ageing at 800 Effect of initial microstructure on the creep behavior of#176;C for 10250 hours is conducted.Microstructural characterization reveals that the alloy initially contains fine phase and carbide precipitates within grains and at grain boundaries.Ageing does not affect the grain size but coarsens the phase and facilitates further EFFECTS OF MICROSTRUCTURE ON CREEP BEHAVIOREFFECTS OF MICROSTRUCTURE ON CREEP BEHAVIOR OF Ti-6211 R.T.Chen,W.H.Miller,Jr.,and E.A.Starke,Jr.,Department of Materials Science,University of Virginia,Charlottesville,Virginia 22901,U.S.A.Introduction Many titanium alloys have been shown to exhibit appreciable amounts of creep at ambient temperatures (T Effect of initial microstructure on the creep behavior oflt;0.2 Tm) (1).

EFFECTS OF MICROSTRUCTURE ON CREEP BEHAVIOR

EFFECTS OF MICROSTRUCTURE ON CREEP BEHAVIOR OF Ti-6211 R.T.Chen,W.H.Miller,Jr.,and E.A.Starke,Jr.,Department of Materials Science,University of Virginia,Charlottesville,Virginia 22901,U.S.A.Introduction Many titanium alloys have been shown to exhibit appreciable amounts of creep at ambient temperatures (T Effect of initial microstructure on the creep behavior oflt;0.2 Tm) (1).Cited by 30Publish Year 2014Author Zl L.Zhao,Zl L.Zhao,H.Li,Mw W.Fu,Hz Z.Guo,Zk K.YaoEffect of initial temper on the creep behavior of a MgGd Sep 25,2008 Effect of initial microstructure on the creep behavior of#0183;The effect of initial microstructure on the creep behavior of the material was studied by comparison of the creep results of the selected specimens after testing at 250 Effect of initial microstructure on the creep behavior of#176;C and a stress of 75 MPa.In order to further compare the creep properties of substantially overaged (250 Effect of initial microstructure on the creep behavior of#176;C/578 h) specimen and peak-aged (250 Effect of initial microstructure on the creep behavior of#176;C/18 h) specimen,they were Cited by 24Publish Year 2008Author K.Y.Zheng,X.Q.Zeng,J.Dong,W.J.DingEffect of initial microstructure on the creep behavior of Effect of initial microstructure on the creep behavior of TMCP EH36 and SM490C steels Author links open overlay panel S.H Wang a C.C Chiang a S.L.I Chan b Show more

Cited by 13Publish Year 2003Author S.H Wang,C.C Chiang,S.L.I ChanEffect of initial microstructure on the creep behavior of

Request PDF Effect of initial microstructure on the creep behavior of TMCP EH36 and SM490C steels Two steels,TMCP EH36 and SM490C,were prepared with the same composition but different Cited by 13Publish Year 2003Author S.H Wang,C.C Chiang,S.L.I ChanEffect of initial microstructure on microstructural Request PDF Effect of initial microstructure on microstructural instability and creep resistance of XD TiAl alloys A number of lamellar structures were produced in XD TiAl alloys (Ti-45 at

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