The formation probability of fatigue crack initiation is decreased. The tensile fracture surface possess the mixed-rupture characteristics of cleavage step, minute lacerated ridge and tough dimple existence.
AZ91D合金拉伸断口表现为既有解理台阶又存在细小撕裂棱及韧窝的混合断裂特征，加入1%Ce后，合金断口的韧性断裂特征增加，有利于提高合金的室温力学性能。
The high pressure side of the high-and-low pressure combined rotor for the steam turbine is required to possess high creep fracture strength and high temperature enduring strength, while the low pressure side to have high toughness and low tough-to-brittle transition temperature.
汽轮机高低压联合转子锻件的高压侧要求具有高的蠕变断裂强度和高温持久强度，同时低压侧要求具有高的韧性和低的韧脆转变温度。
The micro appearance observation of the impact fracture showed that the fracture pattern of the nanometer TiO2/UPR changes from typical brittle to typical tough fracture near the critical point.
在扫描电子显微镜下观测纳米TiO2/UPR的冲击断口形貌时发现，在脆-韧转变点附近纳米TiO2/UPR的微观形态发生了从脆性断裂到韧性断裂的形貌特征。
The rupture of nano film is more like brittle fracture and accords with Griffith theory of rupture, but that of nano wire is more like tough fracture with plastic flow.
纳米薄膜的断裂接近脆性断裂，断裂强度符合Griffith理想晶体脆断理论；纳米镍丝在断裂过程中表现出微弱塑性。
This area underwent a widespread tectonic thermal event in Haixi period resulting in dome structure, extending fault, secondary brittle fracture belt and brittle tough fracture belt, which played very important role to contol gold mineralization in this area.
海西期本区经历了一次广泛的构造－热事件，并形成穹窿构造、伸展断层、次级脆性和韧脆性断裂带，它们对本区金成矿起着重要的控制作用。
In fatigue crack expansion zone, base metal was tough transgranular fracture, however, a mixed fracture characteristics of tough and brittle was noted on fractographs of fusion zone.
在疲劳扩展区，母材为韧性穿晶断裂，熔合区则呈现出韧性和脆性相混合的断裂形貌；
The results show that the alloy possesses some heat resistant ability, its fracture mode varies with alloy states and test conditions, which can be intergranular and transgranular fracture, or brittle and tough fracture.
结果表明：该阻燃合金具有一定的耐热性，且在不同试验条件下呈现不同的断裂特征；
PR0315 is tough super micro grain carbide grade with TiAlN coating, with excellent wear resistance and fracture resistance.
PR 0315是在强韧性超微粒子硬质合金上涂有TiAlN涂层、兼具优异的耐磨损性、抗崩损性的刀头质。
Mechanical Properties and Fracture of the Super-Tough PA6/ABS Alloy
超韧PA6/ABS合金性能和断口形貌研究
Only 20% of GPE could make the blend from brittle fracture transmute to tough fracture.
GPE能明显改善共混体系的相容性，提高共混体系的冲击强度，仅用20%的GPE就能使共混物由脆性断裂变为韧性断裂。
After ESR the IGB of the VIM alloy is restricted. The 77K fracture surfaces are mainly composed of dimples with a small amount of cleavage facets and exhibit a tough fracture character.
电渣重熔后其低温沿晶脆性被抑制，77K断口具有韧窝占主导并混有少量准解理小刻面的韧性断裂特征。
The authors considered that the fatigue crazes of the high cobalt hard alloy developed in the tough phase & Co, hence the fatigue fracture of the die had the characteristic of high frequency fatigue of the common tough metals.
作者认为：高钴粗晶粒硬质合金的疲劳裂纹是在韧性的钴相中发展，故冷镦模的疲劳断裂具有一般韧性金属高波周疲劳的特征。
Experimental results show that the fracture of this cast steels at room temperature are essentially of the trans-granular tough fracture mode, while it appeares essentially as the intergranular mode at - 196 ℃.
试验结果表明，室温时该铸钢断裂形式以穿晶韧性断裂为主，而在&196℃时断裂则以沿晶韧性断裂为主。
Mechanical Properties and Fracture of the Super-Tough PA6 / ABS Alloy
超韧PA6/ABS合金性能和断口形貌研究
While a ball mill is working, balls in the mill are lifted, and then are thrown away with a certain velocity to collide raw material. But at the same time, balls and underboarding are also got collision which may make balls and underboarding fracture. Considering the tough lubrication condition and dust and prills have easy access to meshing zone of gears, the heavy abrasion on gear surface often appears in the upstage gear of open-gear transmission of ball mill.
当球磨机正常运转时，磨球被提升到一定高度后抛落，以一定的速度对物料产生冲击而粉碎物料，同时也对磨球和衬板自身产生冲击，这可能造成磨球和衬板的破球磨机的末级开式齿轮传动，由于润滑条件差，粉尘、金属颗粒容易进入啮合区，齿面常常出现严重磨损，导致齿廓形状发生变化，最后因齿厚磨损过多而折断。