Phase Chart Analysis of "Red Brittleness" Phenomenon in the Industrial Pure Iron Forging Because of over-heated, hardness of part blade on the cutter is inadequate.

The residual deleterious elements in steel lead to products occurring red brittleness surface crack and temper brittleness, and lead to hot strength of heat resistant steel decreasing.

钢中的残余有害元素致使钢材产生红脆性表面裂纹和具有回火脆性倾向，并使耐热钢的热强性降低。

By the research on forging and cold forming performance of electromagnetism pure iron, the rational forging process is brought forth, it is specially emphasized to avoid the red brittleness and blue brittleness forging temperature range for the electromagnetism pure iron.

通过对电磁纯铁锻造与冷成形性能的分析研究，给出了合理的锻造工艺，特别强调了要避开电磁纯铁的红脆与兰脆锻造温度区域。

Occurring Reason and Guarding Against Blue Brittleness and Hydrogen Brittleness During Drawing Manufacture

拉伸加工中蓝脆与氢脆的产生及预防

Besides, the hydrogen induced cracking hidden at the blue brittleness area had been also discovered.

除此，还发现隐藏在蓝脆区的氢诱发裂纹。

However, a temper brittleness has appeared after high temper.

空冷后高温回火产生回火脆性。

A study on high temperature temper brittleness by internal friction measurements

结构钢高温回火脆的内耗法研究

Analysis of Weld Property and Temper Brittleness for Cr-Mo Steel

Cr-Mo钢的焊接性和回火脆性分析

Plotting the curve of temper brittleness transition temperature by computer

用计算机绘制回火脆性转变温度曲线

In this paper, blind welding, cold shortness and hydrogen brittleness are mainly discussed as the major problems arising in underwater wet welding.

湿法焊接的主要问题是“盲焊”、“冷脆”和“氢裂”，本文介绍了克服这些弊端的工艺和方法；

A brief summary of segregation. especially nonequilibrium of interface& grain boundary, is presented in this paper, and the relationship between segregation of intergranular boundary and the cold brittleness is also introduced.

简要介绍了偏聚特别是晶界非平衡偏聚研究的历史和现状.并扼要介绍了品界非平衡偏聚与材料冷脆之间的关系。

The increase of phosphorous content will decrease the ductility and toughness of the steel, especially with the increase of carbon content in steel, this phenomenon is usually called "cold brittleness".

磷对绝大多数钢种来说是有害元素，磷含量的增加会使钢的塑性和韧性降低，通常称为冷脆性。随着钢中碳含量的增加，这种现象更为严重。

The acrylic emulsion binder had good film forming, better adhesion and chemical stability, its threadlike structures would bring weakness of heat-adhesive and cold brittleness and clogging screen.

丙烯酸酯类粘合剂具有较好的成膜性，良好的粘着力及化学稳定性，但其线型结构特点，易造成聚合物薄膜出现热粘冷脆及印花堵网等问题。

Many factors must be considered in the design of a large sized cryogenic atmospheric pressure ammonia warehouse. The material of liquid ammonia tanks must resist the cold brittleness at-33?

设计低温常压大型氨库应考虑诸多因素，液氨贮罐的材料必须具备抗-33℃低温冷脆性能，其设计过去大多是引进的。

The treatment of cold brittleness of resin to pulverize PVC is an efficacious method of obtaining ultrafine powder.

对PVC树脂进行低温冷脆处理，可以有效地实现PVC树脂的超细粉碎。

Chemical interaction between grain boundary chemistry and cold brittleness temperature.

建立了晶界化学和冷脆性温度之间的关系。

Under the high-speed work condition, the brittleness of epoxy adhesive coating leads to its bad slurry erosion performance.

但由于环氧树脂胶粘层脆性大，在较高速度的浆体冲蚀工况下，其抗浆体冲蚀磨损性能并不理想。

Because brittleness behavior of concrete is influenced by size of specimen, brittleness index must not including size effect. Most existing brittleness index is not exact for its including parameters vary with size.

由于试件的尺寸显著影响混凝土的脆性行为，脆性指标必须不包含尺寸因素，即不随试件尺寸发生改变，现有的绝大多数脆性指标由于所含参数具有尺寸效应而不确切；

According to the discuss of brittleness and brittleness index for concrete, as a true brittle material from microstructure point, magnitude of brittleness of concrete is relate to the dimension of plastic zone.

对混凝土脆性及脆性指标分析的结果表明，混凝土作为微观真脆性的材料，其脆性大小最终应归结为塑性区尺寸的大小；

And it is found that the model can duplicate the transference of deformation mode from the strain softening under the low confining pressures to the strain hardening under the high confining pressures; and the brittleness index gradually reduces when the confining pressure is increased.

模拟结果表明：这一模型可以模拟低围压下的应变软化到高围压下的应变硬化现象，并且脆性指数随着围压的增大而逐渐减小。

Numerical examples show that high brittleness index can improve the bearing capacity stability of the structure and the existence of crack set up in advance will increase the ductility of the structure, but it may result in the reduction of ultimate bearing capacity.

数值计算表明：增加脆性指数可以提高结构的承载稳定性；初始预制缝可以增加结构延性但会降低极限承载力。