hardness

Tempered martensite was gradually generated as the cutting temperature increased, which is the main cause of the decrease in the hardness.

随着加工温度升高，工件表面逐渐产生回火马氏体，这是造成工件表面硬度下降的主要原因。

The results showed that tempered soft zone in harden zone case produced in process of discontinuous medium frequency induction hardening which has microstructure of tempered sorbite and low hardness and low fatigue limit were major reason to cause driven gear cracking.

结果表明，因中频淬火的不连续，使淬硬层出现了回火软区，组织为回火索氏体，降低了材料的硬度和疲劳极限，最终导致从动齿轮开裂。

As the adiabatic shear bands form and develop, a series of changes in chip morphology occur which is mainly influenced by the cutting speed and the tempering hardness of workpiece material.

随着绝热剪切带的产生和发展，切屑形态发生了一系列转变，切削速度和工件材料回火硬度是影响这一转变过程的主要因素。

The changes of quenching and tempering hardness and the microstructure transformation of four kinds of Cr-W-Mo-V medium-alloy steels were investigated.

研究了4种不同成分的Cr-W-Mo-V中合金钢的淬火硬度、回火硬度变化和组织结构转变。

One property of steel is its hardness.

坚固是钢的特性之一.

Beneath Ruth's composure he sensed an uncharacteristic hardness.

在露丝的平静下面他感到一种反常的严酷.

The effect of following factors on thermal fatigue resistance of GJW50 steel-bonded tungsten carbide, such as, austenitizing temperature, tempering temperature and hardness, has been studied.

研究了奥氏体化温度，回火温度及硬度对GJW50碳化钨钢结硬质合金热疲劳抗力的影响。

The old snow has compacted into the hardness of ice.

雪堆积日久而凝固如冰.

He had slipped from hardness into affability.

他从声色俱厉变得和颜悦色.

After tempering, the hardness and antibacterial property first increase then decrease with the increase of tempering temperature.

回火后，随回火温度的升高，硬度和抗菌率均呈先增大后减小的趋势；

He felt the hardness of the iron railing press against his spine.

他感觉到硬邦邦的铁栏杆顶着自己的脊梁。

This process removes the water hardness.

这一工艺去除水的硬度.

In America, people don'tnormally admit to the hardness of life.

在美国，人们通常不承认生活过得艰苦。

Regressive computation between tempering parameters and hardness of cold rolling work rollers

冷轧工作辊回火工艺与硬度的回归计算

Indentation methods of hardness testing comprise two principal groups.

压痕法测定硬度包括两大类.

Surface hardness of bearing steet decreased after quenching, because temperature traverse quickly in cooling-off The case happens easily when the time of steam film is longer and the temperature of quenching oil is lower.

轴承钢油淬后往往发生表面硬度偏低，其原因是因为冷却途中冷速急剧变化引起的，特别是在蒸汽膜期长，特征温度低的油中淬火时更易发生。

Hardness is caused by divalent metallic cations.

硬度是由一些两价金属阳离子引起的.

The hardness and inhumanity of the man was fast breaking up.

这人那冷酷无情的心情很快地消灭了.

According to the tempering temperature and hardness curve, the redistribution of residual stress is associated with the transformation of residual austenite.

由回火温度与硬度变化曲线证实，残余应力重新分布是与残余奥氏体转变相关联。

The hydrogenation can be controlled to produce any degree of hardness desired in the product.

为了生产所需要的任何硬度的产品,可对氢作用加以控制.

A knid of metallic hardness came into his voice.

他的声音带有一种刺耳的生硬的腔调.

The relations between the tempering hardness and the temperature for hardened bearing steel and low alloy steel were studied.

研究了淬硬轴承钢及一些低合金钢回火硬度与回火温度的关系。

...the physical properties (weight, volume, hardness, etc.) of a substance.

物质的外部特性（重量、体积、硬度等）

At night, when all the windows are lit up, the hardness of the daytime is softened.

夜晚, 当千家万户的窗子被灯光照亮之时, 白天那种硬邦邦的感觉就缓和下来了.

Even the years of military training had not muscled him into hardness.

甚至几年的军事操练也未曾使他增强体质.

A relation between phosphorous content-temperature and a maximum hardness are found.

找出了硬度最大值与磷含量和加热温度的关系。

With regard to hardness, the diamond is in a class by itself.

讲硬度，金刚钻是独一无二的。

A hardness came over Gudrun's face. She did not want to be too definite.

古姐脸上一阵冷酷的神情, 表明她并不想把这事说得太明确.

The results showed that two of surfacing layers under 850 ℃ air cooling, 850 ± 5 ℃ oil cooling and 400 ℃ tempering had higher hardness and better wear corrosion resistance, and the technological processes were simplified as well.

结果表明，两种硬质合金堆焊层经850℃空冷、850±5℃油淬+400℃回火后，均具有较高的硬度和优异的耐腐蚀磨损性能，且简化了表面处理工艺。

One simple way of describing strength is in terms of surface hardness.

描述强度的一种最简单方法是以表面硬度来表示.