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- Keywords cleavage fracture;triaxial of stresses;fracture toughness;RKR model;cleavage fracture stress; 解理断裂;三轴应力度;断裂韧性;RKR模型;解理应力;
- cleavage fracture stress 劈裂压力
- Fracture measurements show that the mode attributed to cleavage fracture. 断口实验结果表明,接头断裂模式为解理断裂。
- The fractography of this steel changes from dimple fracture into cleavage fracture and inter-granular rapture. 该不锈钢的夏氏V型缺口(CharpyV-notch)冲击试样断口形貌随着时效时间的延长由韧窝断裂为主向准解理断裂和沿晶断裂为主变化。
- The fracture appearances transfer from dimple to intercrystalline fracture with the temperature drops and cleavage fracture appear when work hardening happened. 冲击断口由室温下的韧窝断口逐渐转化为低温下的沿晶断口,在加工硬化时还会出现解理断口。
- The fractography of this alloy is changed from dimple fracture into cleavage fracture and inter-granular rapture with the extension of aging time. 另外,该不锈钢的CVN冲击试样断口形貌随着时效时间的延长由韧性断裂机制的韧窝断裂为主向脆性断裂机制的准解理断裂和穿晶断裂为主变化。
- In the neighbourhood of the unhealed porosities the alloy matrix appeared to be embrittled and in certain cases cleavage fracture was observed. 未锻合疏松周围的合金基体有一定变脆倾向,有时可以观察到解理断口。
- Hard brittle particles can have an important influence on cleavage fracture in steels, and can act as cleavage initiators. 钢中的脆硬粒子对钢的解理脆断有直接的影响,解理断裂源大都发生在脆硬粒子上。
- The fracture morphology of matrix metal is dimple fracture and tear dimple, however, that of the cemented carbide is brittle cleavage fracture and intergranular fracture. 在冲击载荷作用下 ;基体金属断裂表现为高塑性的韧窝断裂 ;且存在一定撕裂棱 ;而硬质合金的断裂为脆性穿晶解理断裂或沿晶断裂 .
- Fractographic observations showed that hydrogen could induce surface cracks for smooth specimens and a cleavage fracture pattern for notch specimens at RT. 破断面观察结果显示,在室温中,氢气会导致平滑试片在表面形成裂纹,而在凹槽试片中产生劈裂破坏形态。
- The fractures of the alloys change from dimple to cleavage fracture with river pattern. 合金的断口形貌由韧窝向河流花纹状的解理形貌转变。
- The smaller the curvature and the larger the crack length the smaller will be the fracture stress. 曲线半径越小,裂纹长度越大,断裂应力也就越低。
- In other word, thearnount of snake-like dimple on fracture surface is determined by the amount ofpearlite in the sintered steels. In the case of higher carbon content(e. g. 0. 76% ),cleavage fracture is observed. 韧性断裂所占的份额取决于烧桔钢中的碳含量、冷却速度及退火温度,即烧结钢中的珠光体数量决定统形韧窝的数量,在高碳时(如0.;76%25C),还出现解理断裂。
- Ductile-brittle features appear in the fracture. Intergranular and cleavage fracture take place in the grain of A12O3. Ductile fracture appears in the bonding phase, and slight tearing edge it formed. 该材料断口呈韧-脆特征;沿晶与解理为Al_2O_3颗粒的两种主要断裂机制;粘接相的断裂以解理与撕裂为主;有轻度撕裂棱产生.
- The grain grow, the fracture stress and the micro-hardness are decreased significantly for the corroded rotary swaging W-specimen, and are not influenced so much for the polishing W-specimen. 腐蚀失重曲线的不同和腐蚀产物的差异表明,表面加工工艺造成的表面状态对钨在钠中的腐蚀特性和机理有显著影响。
- Stress can be the undoing of so many fine players. 紧张可能是这许多优秀选手失败的原因。
- Keywords Offshore structure steel;Local approach;Cleavage fracture;Weibull stress;Finite element; 海洋平台结构钢;局部法;解理断裂;威布尔应力;有限元;
- ANALYSIS OF FRACTURE STRESS FOR FROZEN STEEL PIPE 冻结管断裂位置的确定
- In the word "mother" the stress is on the first syllable. 在"mother"这一字里,重音在第一个音节上。,在"mother"这一字里,重音在第一个音节上。
- STUDY OF CLEAVAGE FRACTURE SURFACE OF TiAl ALLOYS IN NANOMETER SCALE TiAl型金属间化合物解理断口的纳米尺度研究