焊态

成功研制了一种适用于抗冲击磨料磨损条件下的堆焊合金，合金系统为Fe-Mn-Cr-Mo-V，在受到较大载荷冲击后较焊态堆焊层硬度提高66%。

A kind of hardfacing alloys were developed for impact wear-resistant which is a Fe-Mn-Cr-Mo-V alloy system . After impact experiment the hardness degree of deposited metal increases 66 % compare with the hardness degree of deposited metal as welded .

采用超声冲击处理（UIT）方法对焊接接头进行处理，并将冲击态接头与焊态接头进行了对比。

The specimens of the welded joints were treated with ultrasonic impact treatment ( UIT ) and compared with the as-welded ones .

Mn对铸造Al-Si合金和焊态Al-Si合金中的针状Fe相均有很好的抑制作用。

Mn has good controlling function on acicular Fe phase in casting Al Si alloy and welded state Al Si alloy .

焊态焊缝组织为α（Al）＋树枝状共晶，接头拉伸断裂以穿晶断裂为主；

Before heat treatment , the metallographic structure is α( Al ) and dendritic eutectic structure , the main form of tensile fracture of the welded joint is intracrystalline .

用光滑和缺口拉伸试件，对C-Mn钢的焊态和焊接热影响区的热模拟态进行氢脆敏感性指数的研究，并进行了金相与断口的SEM，TEM，AES的微区分析。

Hydrogen embrittlement index ( 1 % ) of welds and heat affected zone ( HAZ ) of C-Mn steel welded joints are studied by means of smooth and notched tensile specimen .

焊态下CLAM钢经腐蚀后，焊缝区表面元素无明显变化，内部无锂铅元素渗透，腐蚀层较为均匀。

By corrosion , the elements in the surface of weld zone did not significant changed , no lithium-lead penetrated is inside , corrosion layer became more uniform .

测试结果表明，X射线应力测试技术用于大型球罐残余应力的现场测量是可行的；在焊态下测量的残余应力值较高，而焊后热处理使残余应力得到充分的解放。

It was found that the X-Ray measuring technique of residual stresses used for the large spherical vesseles in the working field is feasible , the measured residual stresses in the as-welded state were higher and they were sufficiently relieved after postweld heat treatment .

结果表明三项焊接工艺的所有焊态焊接接头（包括焊缝和热影响区）试样的特征CTOD值，都大于设计规格书的要求。

The results show that all CTOD characteristic values of welded joints of welding crafts , including welding positions and heat affected zones , are larger than the CTOD acceptable value .

焊态（快速冷却）组织均较为细小，T6处理后含铁、镍高的出现长度约50μm的条状组织；

After welding ( quick cooling ), both structures are fine , and after T6 treatment there are club shaped structures about 50 μ m in that Fe Ni content is high .

结果表明，经过超声冲击处理的X65钢对接焊接管接头，其疲劳寿命是原始焊态接头1.85～11倍，其疲劳强度相对原始焊态接头提高37.9%；

The test results show : as for specimens of X65 , butt joints , the fatigue life of the former is1.85-11 multiples of the latter and the fatigue strength was increased by37.9 % ;

焊态下的焊缝组织是粒状或条状贝氏体。

Granular or lath be - bainite was formed in as-welded metal .

焊态镍铝青铜的空蚀腐蚀性能

Cavitation Erosion and Corrosion Resistance of As - welded Nickel Aluminum Bronze

8000m~3球罐选材及焊态使用技术要求探讨

Inquiry about material selection and as-welded technical specification of 8 000m ~ 3 spherical tank

结果表明：BHW35钢焊缝焊态时组织为针状铁素体，在晶内有细小碳化物弥散分布；

The results show that narrow gap SAW weld metal zone consisted of acicular ferrite ( AF ) and dispersed carbide .

但剔除缺陷影响，时效后的接头的性能优于焊态的，而且自然时效优于人工时效。

However , excluding impact of defects , the aging joints is better than welded , and the natural aging is better than artificial aging .

与不含焊接缺陷的焊态试件相比，提高疲劳强度32%，提高疲劳寿命2～7倍；

Compared with as-welded specimens with no defects , the fatigue strength has been increased by32 % , and the fatigue life by2 ~ 7 times .

喷丸后接头屈服强度和抗拉强度相对于焊态分别提高了3.4%和26.5%，伸长率下降了52.6%。

The yield strength and tensile strength of the weld specimen was increased respectively by 3.4 % and 26.5 % and the elongation was decreased by 52.6 % .

结果表明，接头焊态组织可分母材纤维组织区、部分再结晶区、细晶区、粗晶区及熔核中的非平衡组织区；

The results shown there were fiber zone , partially recrystallized zone , fine grain zone , coarse grain zone and unequilibrium microstructure zone in the as-welded joint .

而氩弧保护气体焊接并超声冲击的试件应力集中系数增加比例较大，压缩残余应力的作用未明显，疲劳强度低于对应焊态试件的值。

While the increasing value is higher by argon shielding gas , ultrasonic peening is not so effectively , the fatigue strength is lower than the corresponding T-welded specimens .

在中低应力水平下，氦氩混合保护气焊接并超声冲击处理的试件应力集中系数增加比例较小，压缩残余应力的作用更加明显，其疲劳强度超过了对应焊态试件的值。

The increasing value is lower by helium-argon mixture shielding gas thus in the low stress level , ultrasonic peening is more effectively , the fatigue strength is larger than the corresponding T-welded specimens .

系统地探讨了不同碳含量对C-Cr-Mo-W-V-Nb合金系堆焊焊条堆焊层焊态下和时效处理后的硬度及组织的影响规律。

The effect regularity of different carbon contents on the post-weld hardness and aging hardness and microstructures of hardfacing layer of coated electrode with C Cr Mo W V Nb alloy system are systematically explored .

结果表明，焊态下焊缝组织为残留β/B2相和包括次生α2相、O相以及ω相在内的β转变组织；

It is shown that the as-welded joint microstructure was composed of a small amount of retained β / B2 phases and β - transformed microstructures including secondary α _2 , some Ο phase and ω phase .

对比疲劳试验结果显示：①在一定的应力范围内，超声波冲击处理试件与原始焊态试件相比，疲劳强度提高95%左右，疲劳寿命延长3.6-62倍。

Test results indicated that : ( 1 ) In the given range of stress level , contrasted with the specimens in as welded condition the fatigue strength of the specimens treated by ultrasonic peening is increased by about 95 % and the fatigue life is prolonged by 3.6-62 times .

本文中，对于8mm厚的C-Mn钢板的对接焊缝，比较了自发二氧化碳激光焊、冷态填充焊丝的二氧化碳激光焊、MAG激光复合焊的间隙搭桥能力的比较。

In this paper the gap bridging capability of autogenous CO2 laser , CO2 laser with cold filler wire and hybrid CO2 laser-MAG welding are compared , for the butt welding of 8mm thick C-Mn steel plate .

研究了2091Al－Li合金TIG焊焊接接头焊态及不同热处理状态下的显微组织和拉伸性能。

The microstructure and tensile properties of TIG welded joints of Al-Li alloy were investigated both in as welded and different postweld heat treatment conditions .

针对8000m3球罐的设计参数及使用条件，对球壳材质选用进行了分析和论证，并提出了必须严格控制的制造和组焊技术要求，以确保球罐在焊态下安全运行。

The material selection of shell of the 8 000 m3 spherical tank in accordance with design parameter and condition of service is analysed and demonstrated . Working specification for manufacture , assembly and field weld to be strictly controlled is put forward to ensure safety using as-welded .

本文主要研究如何应用有限元法分析平板对接的焊趾TIG重熔层激冷处理对焊趾表面残余应力分布的影响规律，包括焊态和焊趾TIG重熔的残余应力的分布。

This paper studied how to attain the distribution regulation of welding residual stress of butt joint of plate after weld toe was TIG remelted and intense cooled by finite element method . It includes residual stress distribution after welded and weld toe TIG remelting .