Study on low temperature toughness and microstructure on base metal and welded joint of X80 pipeline steel;
X80管线钢及其接头的低温韧性和显微组织
Influence of different thermal cycle on low temperature toughness in coarse-grained HAZ of 9Ni steel
多次热循环对9Ni钢热影响粗晶区低温韧性的影响
Results show that 20MnMoD forging at-50 ℃ has excellent low temperature toughness,it is adapted to-50 ℃ 15MnNiNbDR steel plate for low temperature pressure vessels.
结果表明,-50℃的20MnMoD钢锻件具有良好的低温韧性,可与-50℃级正火型低温压力容器钢15MnNiNbDR配套使用。
Effect of CO_2 content on low-temperature toughness of weld metal of high strength steel in MAG welding;
CO_2含量对高强钢MAG焊焊缝金属低温韧性的影响
A series of Charpy impact tests were done to investigate low-temperature toughness of its weld joints,and the values of toughness were measured at different temperatures to make sure of some temperature ranges that normally correspond to different toughness values.
采用系列冲击试验对接头低温韧性进行了研究。
This steel has been verified excellent in weldability and low-temperature toughness,and no crack is formed in t≤50 mm plates after welding even without preheating or with slight preheating before welding.
结果表明：该钢具有优异的焊接性能和低温韧性；板厚≤５０ｍｍ的钢板焊前不预热或稍加预热而不产生焊接冷裂纹，是制造大型压力容器（特别是低温和常温球罐）、水电站压力钢管和水轮机蜗壳、高寒地区使用的大型工程机械、大跨度桥梁及海上采油平台等装备的理想用材。
The lathing martensite increases with the improvement of quenching temperature,the yield strength tempered at 600 ℃ improves,but the cryogenic toughness of 9Ni steel decreases.
随着淬火温度的提高,组织中出现的板条马氏体增多,经600℃回火后屈服强度逐渐提高,但低温韧性呈降低趋势。
The heat treatment processes of large scale forge were simulated and the effects of the different heat treatment processes on the cryogenic toughness at -30 ℃ of Steel 2.
25V钢-30℃冲击韧性的影响,结果表明经调质预处理后的低温韧性随再奥氏体化温度的升高而降低,而经1200℃正火预处理后进行1040℃奥氏体化,不仅有利于碳氮化物充分溶解与合金元素的均匀化,同时有利用奥氏体的自发再结晶细化晶粒并获得较高的低温韧性。
The effect of ESR on cryogenic toughness was investigated by means of TEM and SEM.
2 5 N奥氏体钢电渣重熔前后的冲击韧性、氢含量及夹杂物含量 ,并利用扫描电子显微镜和透射电子显微镜研究了电渣重熔对该钢低温韧性的影响。
Study the low-temperature modification of PCB, including mechanical property to find the influence of the different low-temperature on impact strength, flexural strength, shear strength of PCB.
实验结果表明在-30℃左右平均功率下降得较快,冷却5min对低温改性最有利。
Research progress of low temperature performance for lithium-ion batteries;
锂离子蓄电池低温性能研究进展
Research on low temperature performance of modified asphalt and mixture of bridge expansion joints;
改性沥青伸缩缝结合料与混合料低温性能研究
Influence factors analysis of the low temperature performance of SBS modified asphalt;
SBS改性沥青低温性能的影响因素分析
A Study on Cryogenic Toughness of Super Low Carbon 9Ni Steel Welding Joint
超低碳9Ni钢焊接接头低温韧性研究
Effect of ESR on Cryogenic Toughness of Austenitic Steel
电渣重熔对奥氏体钢低温韧性的影响
Investigation of POE Improving Low-temperature Toughness of Transparent Polypropylene for Medical Purpose;
POE提高医用透明PP低温韧性的研究
Low-Temperature Toughness for Weld Joint of 400 MPa Ultrafine Grained Steel Strip
400MPa级超细晶粒钢焊接接头的低温韧性
Effect of Microalloy Element on Low-temperature Toughness of Q345E Steel Bar
微合金元素对Q345E棒材低温韧性的影响
Research on TMCP Process and Low-temperatural Toughness of F40 Higher Strength Hull Structural Steel
F40高强度船板钢的TMCP工艺及低温韧性研究
Research on Microstructure and Low Temperature Toughness of Welding Heat-affected Zone of X70 Pipeline Steel
X70管线钢焊接热影响区组织及低温韧性研究
The Effect of Microalloy Ti、B upon Low Temperature Toughness of Nigh-strength Steel of Low Allow Weld;
微量合金元素Ti、B对低合金高强钢焊缝低温韧性的影响
Effect of Welding Methods on Microstructure and Low-temperature Impact Toughness of Welded Joint of 9Ni Steel
焊接方法对9Ni钢焊接接头组织及低温韧性的影响
Effect of Controlled Rolling and Controlled Cooling Technology on Low Temperature Impact of DH36 Class Shipbuilding Steel
控轧控冷工艺对DH36级船体用结构钢低温韧性的影响
Influence of different thermal cycle on low temperature toughness in coarse-grained HAZ of 9Ni steel
多次热循环对9Ni钢热影响粗晶区低温韧性的影响
Characteristics and Toughness Control Factors for S.G.Cast Iron with High Toughness in Lower Temperature
低温高韧性球墨铸铁特点及韧性控制因素
Influence of Metallurgy Quality on Impact Toughness of Low Temperature Cast Steel;
冶金质量对低温铸钢冲击韧性的影响
Research on Improving the Low Temperature Impact Toughness of 09CuPCrNi-A H-beam;
提高09CuPCrNi-A耐候H型钢低温冲击韧性研究
Study on Improving the Low-temperature Impact Toughness of 3.5% Nickel Heavy Plate
提高3.5Ni厚钢板低温冲击韧性的研究
Analysis of the relationship between impact toughness and fracture toughness for rail steel
低温下铁道钢轨钢材冲击韧性与断裂韧性的关系分析
Research on Low Temperature Properties and Toughness of Epoxy Resins Modified with Flexible Side Chain
柔性侧链改性环氧树脂的低温增韧研究
Effects of Ni Content and Heat Treatment on Impact Toughness of QT400-18L at Low Temperature;
含镍量及热处理对QT400-18L低温冲击韧性的影响