1) CGHAZ
粗晶区
1.
Effect of Welding Parameters on Low-temperature Toughness in CGHAZ for X80 Pipeline Steel;
焊接工艺参数对X80管线钢焊接粗晶区低温韧性的影响
2.
Thermal cycle of in-service welding and the microstructure & property of CGHAZ of X70 pipeline steel;
X70钢在役焊接热循环及粗晶区组织性能研究
3.
EFFECT OF COOLING TIME ON CGHAZ TOUGHNESS AND MICROSTRUCTURE OF Ti MICROALLOYED STEEL;
冷却时间对Ti微合金钢焊接粗晶区组织及韧性的影响
2) coarse grain zone
粗晶区
1.
Aimed at TCS ferric strainless sleel for the new type railway vehiele,the effect of the heat input energy on the microstructure of the coarse grain zone of heat affected zone in welding joint was studied,and the range of the suitable heat input energy was recommend,which was 5.
针对新型铁路车辆用TCS铁素体不锈钢,研究了热输入对其焊接热影响区粗晶区组织特征的影响,并以此提出了其合理的焊接热输入范围为5。
2.
By the experimental method of simulating stressrelief on the welding heataffect coarse grain zone,we study the susceptibility of stressrelief cracking in the process of post weld heat treatment and discuss the mechanism of the stressrelief cracking.
采用模拟焊接热影响区粗晶区应力释放的试验方法，研究ＣＦ６２钢在焊后热处理过程中的消除应力裂纹敏感性及其形成机理。
3.
In addition to,impact toughness of coarse grain zone decrease with the t8/5 increasing.
结果表明:粗晶区是X70级管线钢热影响区中韧性较差的区域,粗晶区韧性恶化主要是晶粒粗化以及粒状贝氏体、上贝氏体等非平衡低温转变产物数量增多造成的,且粗晶区的冲击韧性随着t8/5的增加而降低。
3) coarse grained region
粗晶区
1.
The variety regulations between the toughness of coarse grained region for 4 kinds X80 high property pipeline steels and welding heat input number were studied by welding thermal simulation technique,optics and TEM as well as impact toughness test.
利用焊接热模拟技术、光学金相、透射电镜和冲击试验,研究了4种X80高性能管线钢焊接粗晶区韧性随焊接热输入的变化规律。
2.
The relationship between microstructure and toughness of coarse grained region in X80 pipeline steel during double welding thermal cycle was investigated using welding thermal simulation technique,OM and TEM as well as impact toughness and crack tip opening displacement(CTOD) tests.
利用热模拟技术,采用光学、透射电镜和冲击韧度、裂纹尖端张开位移(CTOD)试验研究了X80管线钢在(多道焊接)二次热循环过程中粗晶区的韧性与显微组织的关系。
3.
In this paper,microstructure of the coarse grained region was got by means of weld heat simulation.
利用焊接热模拟技术,获取粗晶区组织,经过不同的热处理工艺,测定其冲击韧性和硬度,进行了显微组织分析,探讨了焊后热处理对 X52管线钢粗晶区韧性的影响。
4) coarse-grained zone
粗晶区
1.
Structure and property of coarse-grained zone in weld of a high strength low alloy 20Mn2WNbB steel studied by thermal simulation;
低合金高强钢20Mn2WNbB焊接热模拟粗晶区组织与性能
2.
The result showed that cooling rate have a great effect on microstructure of coarse-grained zone and the tougness.
研究了含铜时效钢焊接粗晶区的组织与韧性,并测定了含铜时效钢焊接粗晶区连续冷却转变曲线(SHCCT曲线)。
5) coarse grain heat affected zone(CGHAZ)
粗晶区(CGHAZ)
6) weld coarse crystal region
焊接粗晶区
1.
By using weld thermal simulation technology,and considering from view point of stiffness for the weld coarse crystal region,it is determined the elimination of preheating for HCM2S steel welding is fully feasible,the suitable heat treatment specification to be(710-750)℃×2 h.
采用焊接热模拟技术,确定了从焊接粗晶区韧性的角度考虑,取消HCM2S钢焊接对于预热是可行的,其合适的焊后热处理范围为(710～750)℃×2h。
补充资料：铝合金挤压制品的粗晶环
铝合金挤压制品的粗晶环
coarse grain ring of extruded aluminium alloy product
IOheJ一nJ一yo zh1P旧de euJ一nghuon铝合金挤压制品的粗晶环(coarse grain ringof extruded aluminium alloy produet)宇吕合金加工制品缺陷的1种。挤压制品末端周边具有粗大的再结晶晶粒区，单孔模挤压呈环形，多孔模挤压呈月牙形。 粗晶环是采用无润滑正向挤压制品中固有的·种缺陷。沿挤压制品周边形成的粗大晶粒区，降低制品的抗拉强度和屈服强度，提高伸长率。如高强硬铝合金2A12(IY12)淬火自然时效状态棒材的粗晶环区(见图)，与正常区相比.纵向么降低84一92MPa，丙2降低60~64MPa才提高3%一4%。 对粗晶环的形成机理各国有许多研究，早期文献认为由于发生二次再结晶而形成;20世纪70年代以来多数研究结果证明是由于亚晶合并产生的一次再结晶形成。 影响粗晶环的因素较多，低锰的合金形成粗晶环严重，含错的合金可减轻粗晶环。铸锭均匀化退火温度高和挤压温度低，均使粗晶环区深度增加。采用反挤压、润滑挤压和冷挤压工艺可显著减轻粗晶环，甚至完全消除。降低热处理温度和缩短保温时间也可减小粗晶环深度。「肇几 高强硬招合金2八1别{_Y12)挤压棒材淬火自然 时效状态的粗晶环 (咚长清)
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