激光···造可···性能···杂构···化成···航空···汽车···等领···广阔···景。···高斯···用产···匀温···极高···梯度···稳定···，导···、球···孔、···力和···缺陷···异性···观性···响了···更广···用。···形和···原位···光增···过程···缺陷···有效···本文···国内···束整···、磁···多场···属激···制造···进展···揭示···激光···-组···能间···机理···多场···属激···制造···展进···望，···属激···制造···能调···有益···

基于···水喷···打印···计开···验平···要包···运动···喷头···系统···加热···及控···件系···四个···。实···能够···床预···、移···灯功···度、···度等···程参···控制···助红···仪能···监测···度分···此基···，用···性黑···墨水···炭黑···行了···印实···现在···热灯···率1···0 ···计照···为2···时，···制墨···打印···形区···形温···到4···而使···墨水···差为···℃，···制炭···能够···强高···末吸···辐射···能力···热墨···3D···验平···新材···和新···索提···式平···为其···3D···验平···主开···有益···

In···is···rk···-s··· e···ri···ta···es···ar···ir···pe···rm···to···ve···ga···th···ow··· s···ad··· p···es···f ···it··· m···fa···ri···wh··· d···er··· k···s ···sc···er···nd···re···ng···ee···ar···mp···ed···ta···d ···et···be

Th···n ···ro···gr···ti···is···sy··· p···uc···n ··· t···it···al···st··· p···es···or···-1···-8···al··· w··· h··· S···on···t,···ic···ed···s ··· m···an···l ···pe···es···n ···er··· r···ce···e ···re···io···th···ll···wa···ab···at···by···le···ve···se···el···g ···M)···he···cr···ru···re···en···e ··· t···ol···ca···ro···ti···we···in···ti···ed··· X···y ···fr···om···r ···D)···pt···l ···ro···pe···M)···ca···ng···ec···n ···ro···pe···EM···el···ro···ro···mi···-a···yz···(E···),···ec···n ···ks···te···if···ct··· (···D)···ie···em···io···ra···is···n ···ct··· m···os···e ···M)···d ···er···nf···l ···ro···pe···he···su··· i···ca···th···Sn···gr···ti···is···hi···ed··· t···mi···n ···el···e ···th···ap···so···if···ti··· a···a ···ge···ou···of··· a···s ··· d···ol··· i··· t···ma···x.···e ···in···re···so···fi··· t···bo···2.···μm···he···cr···ru···re··· c···os···of···-d···et···α-···Ni···n)···tr···an···n-···h ··· (···Ni···)3···pr···pi···es···he···am···r ···γ ···ti···s ···ab··· 0···μm···he···mp··· h··· e···ll··· s···ng···an···ou···es···wi···th···lt···te···ns··· s···ng···of···72···±1···7)···a ··· t···el···at··· a···re···of···2.···1.···% ···he···gh···re···h ···SL···ab···at···Cu···Ni···n ···oy··· d···to···e ···tr···ti···of···e ···in···un···y ···en···en···, ···id···lu···n ···en···en···, ···ci···at··· s···ng···ni···an···is···at··· s···ng···ni··· T···co···ic···t ···fr···io···s ···03···an···br···ve···ar··· t···do···an···ea···ec···is···le···ng··· e···ll··· w··· r···st···e.···20···Ce···al···ut···ni···si···of···ch···og···Al···ig··· r···rv···

高熵···于其···溶体···具有···、高···良好···定性···劳性···性和···性等···能,···航天···、刀···腐涂···火材···域具···应用···传统···金制···主要···真空···铸、···金、···金化···,此···制备···金尺···形状···存在···夹杂···偏析···,对···杂零···无较···方法···选区···Se···ti···La··· M···in···LM···前成···最高···优良···能的···材制···。利···M方···复杂···整体···个性···金属···获得···用,···M成···合金···尚处···阶段···Cr···iM···合金···合金···最成···金体···结构···具有···、硬···好耐···、延···机械···。本···oC···Ni···熵合···金化···为研···,研···M成···窗口···研究···数对···成形···rF···Mn···金的···、微···和力···的影···,为···成形···熵合···奠定···技术···主要···下:···研究···工艺···熔覆···层表···的影···。熔···度随···率增···描速···而增···度随···率增···描速···而减···扫描···00···25···、扫···11···mm···13···mm···围内···道表···连续···,宽···00···高度···μm···由于···区间···温度···时间···有利···道铺···低球···。单···粗糙···描间···而增···要因···间距···致熔···离,···面粗···在扫···为0···mm···层表···最优···度R···.1···m。···优化···成形···rF···Mn···金的···数。···层厚···m、···描功···5 ···描速···00···/s···间距···7m···参数···样致···高为···69···.9···.0···/c···）。···下致···低,···于低···能量···,不···熔化···使合···在裂···洞与···属颗···。高···致密···较低···由于···下能···较高···时造···、飞···面翘···而影···度。···由X···果可···M成···Cr···iM···合金···为面···（F···Fe···2,···分C···Fe···n高···中少···富C···结构···立方···C）···Fe···,主···为熔···较高···金产···。在···形方···观组···各向···沿激···平面···面）···以柱···胞状···,柱···约3···,晶···小于···;沿···度方···面）···鳞”···部以···为主···最大···0μ···,单···穿越···覆道···出外···特征···ED···表明···金各···各元···均匀···显元···。（···化工···下S···形的···rF···Mn···金力···超过···oC···Ni···熵合···锻制···金力···相近···M成···oC···Ni···熵合···服强···18···±2···2 ···,较···升了···.5···拉伸···64···5±···6 ···,较···金提···.4···硬度···4.···5.···V,···Co···eN···高熵···升4···1%···伸长···6.···1.···较铸···降低···断口···性断···性断···合断···,以···裂为···LM···合金···rF···Mn···金晶···致密···分偏···细晶···用可···度、···性能···基体···、裂···陷在···载下···撕裂···伸断···河流···花纹···断裂···较低·

利用···区熔···el···iv···as···me···ng···M）···备了···53···高温···研究···热等···Ho···so···ti···re···ng···P）···SL···GH···6合···和组···的影···用X···射仪···ra···if···ct···,X···、扫···（S···ni···el···ro···ic···co···SE···电子···衍射···ec···n ···ks···te···if···ct···,E···）、···针显···仪（···ct··· p···e ···ro···ly···,E···）等···征了···53···成和···变，···温持···试验···合金···高温···能。···明：···P后···M成···35···金相···持不···为γ···晶格···低，···HI···的升···低。···态合···在1···00···微裂···孔缺···裂纹···在于···界。···P后···中微···全消···仍存···孔洞···35···金经···压处···晶粒···大，···度有···。其···M态···温抗···和伸···别为··· M···26···,H···理后···最高···3.···强度···3.···90···SL···样抗···和伸···别为··· M···5.···HI···后伸···高提···.4···度降···.1··

在激···熔化···le···ve···se···el···g,···）过···熔池···冶金···成形···性能···要影···是,···池处···运动···采用···时观···热动···较为···同时···验“···”表···高,···性大···,数···成了···LM···为和···重要···径。···旨在···拟与···结合···,探···M工···对熔···态演···响规···理解···冶金···优化···提供···据。···作及···下。···面,···散元···流体···方法···SL···粉床···熔池···型,···射线···”算···反冲···激光···使用···积（···um···f ···id···F）···气液···其变···外,···力和···源的···于“···追踪···。首···了激···速度···热动···的影···据熔···度演···动形···凝固···池表···（连···均匀···缺陷···、气···形成···池分···态、···和稳···状态···了不···的熔···变规···成形···密度···。此···现反···的存···体致···影响···重效···可以···面张···定熔···可能···孔,···隙缺···对反···的双···特别···其随···数变···对熔···的影···现当···能量···定值···描速···熔池···深,···了熔···寸;···速度···时,···率越···凹陷···但对···的宽···不大···凹陷···时间···范围···,工···的选···证熔···深度···围最···使凹···尽可···另外···不同···式（···和平···对熔···的影···现平···作用···末从···始熔···体会···化倾···板的···化会···状熔···均匀···熔池···讨论···激光···晶成···响,···斯激···内部···速大···多个···流;···激光···池横···半部···体流···0.···s,···环流···利于···续、···外延···

确定···62···SL···窗口···SL···粒尺···光功···正比···;S···基体···,伴···MC···和γ···出;···理后···化物···加,···变程···,产···曲晶···应。···现S···形N···5合···内存···裂纹···不超···0μ···快速···程中···Mo···部偏···（γ···ve···晶凝···纹形···,高···度导···的热···力则···的外···预热···℃时···力降···50···金表···强度···性特···度达···5±···.8···a,···ST···30···。研···SL···织构···型{···}＜···＞型···构;···匀光···的熔···比远···斯激···,熔···流强···高斯···高斯···外延···只有···mm···光斑···外延···m;···斑组···细化···主导···0℃···役硬···超过···℃后···斑的···界少···高。···现S···形的···18···金组···γ基···av···及部···相,···伸时···心撕···"X···"形···;标···理后···度超···30···,超···标准···0M···65···伸强···11···Pa···锻件···10···a,···更优···延伸···LM···腐蚀···率远···处理···腐蚀···包括···O3···O、···O3···2S···得出···SO···氧和···的S···合腐···步向···部扩···LM···71···腐蚀···原因···重点···讨论···M成···高温···微宏···特点···的问···其在···天等···实际···供初···论参··

S···re···it···s ···tr···te···o ··· s···lt···ou···nh···em··· o···tr···th···d ···gh···s ···et···. ···s ···dy···ul···ro···e ···ew···ea···r ···er···di···e ···uf···ur··· o···xc···en···er···ma··· a···in···al···s.···/>···iv···co··· 2··· T···Au···r(··· P···is··· b···nf···a ···Li···ed···ra···g ···Ta···r ···ra···s ···up·

Al···ug···ig···pe···po···r ···ea···g ··· e···ci···ly···ha··· t···pr···ct···ty··· l···r ···de···ed···si···(L···) ···it··· m···fa···ri··· i···s ···el···se···ec···e ···is···ne···ly···li···d ···be···fa···ra··· f···th···ar···ua···y.···we···, ···re··· n···ys···at···in···ti···io···o ···fi···th···"c···on···ns···. ···th···wo··· a···ri···of···wd···sp···di···an···el···g ···er···nt···re···rr··· o···to···ve···ga···th···ol···f ··· s···ad··· s···d ···LP··· I···he···ng···la··· e···ri···ts···he···gh···ee···ow··· s···ad··· i···ed···du··· t···pa···ng···ns··· o···he···wd···la··· a···se··· u···vo···bl···s ···ec···. ···ev··· t···mu···la··· L··· p···es··· o···ub···sa···es···th···ri··· h··· p···er···re···ng···ee···ar···uc···sf··· a···th···am···s ···se···ev···fe··· d···ct···nd···us···tt···me···ni··· p···er···s ···ti···ar···fa···ue···fe···hi···is···un···in···ti···an···as···ve···ee···ep···ed···fo··· T···nd···ta···th···hy···al···ch···sm···we···br···te···ai···se···mp··· u···r ···fe···t ···de···pr···in···pe···, ···ea···g ··· l···r-···la··· e···ut··· o···he···wd···be···nd···po···ed···ns···eg···. ···is···un···ha···eg···le···of···e ···de···pr···in···pe··· t···ac···l ···de···ay···th···ne···gr···al···in···as···du···o ··· s···nk··· d···ng···wd···me···ng···ut···wa···re···es···e ···ad···ta···in···0 ···er···wh··· t···de···it···de··· l···r ···ck···s ···eq··· t···he···mi··· p···er···ye···hi···es···th···by···hi···ng···mi··· m···in···on···io···nd···al···. ···th···or···LP···ex···im···s ···h ···en··· o···at···al···la···in···e ···de···pr···in···ro···ur···re···nd···ed···d ···ve···r ···cu···io···ha···he···ig···y ···uc···po··· a···cr···s ···th···am···s ···ri···ed···th···gh···ee···ow··· s···ad··· a···ma···y ···ri···e ···th···ed···d ···li···ti···be···en···ye···an···on···ue···y ··· h···er···mp···tu···be···e ···t-···er···lt··· a···el···s ···er···mp···tu···gr···en··· T···ma··· d···ba···wi···th···ig··· p···er···re···ng···ee···s ···o ···cu···d,···ic···s ··· r···ct··· o···he···me···on···ac···ac···f ··· f···ic···d ···pl···lo···th···ui···ng···re···on···hi···tu···pr···de···np···ed···ed···si··· i··· t···ro···of···wd···sp···di···sp··· i···PB···nd···rr···s ··· i···cu···e ···ui···n ···t ···h-···ed···wd···sp···di···is···wa···un···ou···le···hi···pr···de···or···ot···ia···ol···on···o ···an···th···ro···ti···y ··· p··· q···it···f ···F.···) ···2 ···a ···er···ia···c.···bl···ed··· E···vi···Lt···Al···ig··· r···rv···