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- Steel specimens were thermally simulated to form needle ferrite,lath ferrite and widmanstatten structure. 采用热模拟方法,模拟不同形态的针状铁素体、板条状铁素体和魏氏组织的试样,测定试样的断裂参量。
- It is resulted Widmanstatten structure,inclusion and banded structure are mainly reasons causing impact property lowness. 结果表明,钢中魏氏体组织、非金属夹杂物及带状组织是导致冲击性能偏低的主要原因。
- The fracture is mainly caused by the lower hardness and strength which resulted from the Widmanstatten structure existing in the structure of the spline shaft. 花键轴的显微组织中存在魏氏组织,导致其硬度和强度低于技术要求,是造成花键轴断裂的根本原因。
- The results show that the appearance of Widmanstatten structure,upper bainite and martensite in the structure of 20MnSi HRB is the main cause making the yield point disappear. 结果表明,魏氏组织较多、轧制缺陷及夹杂物过多是造成脆断的主要原因,并提出了相应的解决措施。
- The results show that the banded ferrite structure,widmanstatten structure,dendritical microstructure and nonmetallic inclusion which decreasing the toughness of the steel cause the brittle fracture. 结果表明,宏观断口为脆性断裂,金相组织不仅有回火索氏体,还包含不应有的带状铁素体、魏氏体组织及明显的枝状晶和非金属夹杂物,从而导致钢的韧性降低。
- The widmanstatten structure, the needle CoBe phase in CuCo_2Be alloy would be spheroidized and coarsenned, annealing for long time at high temperature after resulting in the change of mechanical properties. 若将其高温退火,针状CoBe相发生球化和粗化,使合金强度,硬度下降,延伸率提高。
- Its fracture was compound cleavage and Intergranular fracture by LOM, SEM and heat treatment experimental instrument.There were massive free-ferrite and widmanstatten structure in big cleavage plane. 分析结果表明,其断裂属于解理和沿晶复合断裂,断口解理面较大,组织中有大块自由铁素体和粗大魏氏组织。
- Widmanstatten Structure of CuCo_2Be Alloy 高强高导CuCo_2Be合金的魏氏组织
- Keywords HRB;non-yield point;Widmanstatten structure;upper bainite; 热轧带肋钢筋;屈服点不明;魏氏组织;上贝氏体;
- Keywords Crackle Anisotropy Sorbite Widmanstatten structure; 发纹;各向异性;索氏体;魏氏组织;
- The two halves of the structure didn't marry up. 该结构的两部分未配合好。
- High winds put great stress on the structure. 大风作用于该建筑物上而产生巨大的应力。
- MIXED GRAIN AND WIDMANSTATTEN STRUCTURE IN PARTING FACE OF HEAVY-DUTY FORGING CONNECTING ROD 大型连杆分模面混晶及粗晶魏氏组织
- The structure had keeled over in the high winds. 那座建筑物让大风给刮倒了。
- A fan-shaped anatomical structure. 扇形器官扇形的解剖结构
- Keywords Incrustation;Overburnt;Oxidation Corrosion;Intergranular Corrosion;Widmanstatten structure;Crack; 水垢;过烧;氧化腐蚀;晶间腐蚀;魏氏组织;爆裂;
- A secluded structure, such as a bower, in a garden. 凉亭一种在花园中建造的隐蔽性建筑物,如凉亭
- The microscopic structure of tissue. 组织机构组织的微观结构
- We visited the museum, a steel and glass structure. 我们参观了博物馆,它是一座钢和玻璃的建筑物。
- We know a lot about the structure of genes now. 如今我们对基因的结构有了较多的了解。
