铁碳合金的塑性和塑性？英文双语对照

铁碳合金的塑性和塑性？

铁碳合金的基本相中,塑性最好的是(奥氏体),强度最高的是(珠光体),硬度最高的 是(渗碳体)。

塑性形变与塑性的区别？

形变就是弹性形变，塑变就是塑型形变。两者是物理学的概念。

1、性质不同，弹性变形为可逆变形，其数值大小与外力成正比，其比例系数称为弹性模量，材料在弹性变形范围内，弹性模量为常数。而塑性变形为不可逆变形，工程材料及构件受载超过弹性变形范围之后将发生永久的变形，即卸除载荷后将出现不可恢复的变形，或称残余变形。2、概念不同物体受外力作用时，就会产生变形，如果将外力去除后，物体能够完全恢复它原来的形状和尺寸，这种变形称为弹性变形。材料在外力作用下产生形变，而在外力去除后，弹性变形部分消失，不能恢复而保留下来的的那部分变形即为塑性变形。

3、相关性质物体不同金属、塑料等都具有不同程度的塑性变形能力，故可称为塑性材料。玻璃、陶瓷、石墨等脆性材料则无塑性变形能力。

什么叫塑性?塑性指标有哪些？

塑性是指在一定外力下，表现固体物质具有抗变形的能力；塑性指标有延伸率和断面收缩率。

所谓塑性，是指固体材料在外力作用下发生永久变形，而不破坏其完整性的能力。

它是金属的一种重要加工性能。

塑性指标（The plastic index）是指金属在不同变形条件下允许的极限变形量，用断面收缩率、延伸率等进行表示，是衡量材料产生永久变形能力的指标。

它是在特定条件下测得的，如拉伸时的断面收缩率及伸长率、冲击试验的冲击韧 性、镦粗或压缩实验时第一条裂纹出现前的高向压缩率（最大压缩率）等。

扩展资料：

塑性指数习惯上用不带%的数值表示。塑性指数是粘土的最基本、最重要的物理指标之一，它综合地反映了粘土的物质组成，广泛应用于土的分类和评价。 由于塑性指数在一定程度上综合反映了影响粘性土特征的各种重要因素。塑性指数愈大，表明土的颗粒愈细，比表面积愈大，土的粘粒或亲水矿物（如蒙脱石）含量愈高，土处在可塑状态的含水量变化范围就愈大。也就是说塑性指数能综合地反映土的矿物成分和颗粒大小的影响。 因此，在工程上常按塑性指数对黏性土进行分类。粉土为塑性指数小于等于10且粒径大于0.075的颗粒含量不超过总质量50%的土；黏性土为塑性指数大于10且粒径大于0.075的颗粒含量不超过总质量50%的土。

塑性特点？

对物体施加外力，当外力较小时物体发生弹性形变，当外力超过某一数值，物体产生不可恢复的形变，这就叫塑性形变。

塑性即物体变形的能力。与之相对的，对一物体施加外力，物体产生形变，移除外力，发现形变消失，物体恢复原样，这就是弹性，弹性越大的物体，能够承受越大的外力而不发生永久形变。而通常塑性越大的物体，能发生永久形变所需的最小力越小。

塑性单位？

“塑性”的定量评价主要由材料的“延伸率”和“断面收缩率”来表达。断面收缩率度量单位为：普赛；延伸率的度量单位为：Delta。“塑性”是对材料受力发生永久变形而不破坏其完整性的现象进行的定性表述；它是一种对物理现象的描述，独自并不具有单位定量的意义。

塑性应变和等效塑性应变哪个大？

等效塑性应变是用来确定材料经强化后屈服面的位置的物理量，其计算公式与计算等效应力的第四强度理论计算公式是一样的，只要把应力改成应变就成。

正如位移/应变是结构变形的度量一样，等效塑性应变是材料塑性变形的一个度量，等效塑性应变为一个标量，可以用于做屈服函数的内参数。

一般应变状态下各应变分量经适当组合而形成的与单向应变等效的应变,或称相当应变,应变强度。

由于等效应变和等效应力都是将复杂应力、应变状态等效成简单的单向拉伸或压缩状态，故可用来测定复杂应力状态下的应力—应变曲线，亦称σe—εe为金属材料的硬化曲线或变形抗力曲线。

等效塑性应变和塑性应变的区别？

等效塑性应变是用来确定材料经强化后屈服面的位置的物理量，其计算公式与计算等效应力的第四强度理论计算公式是一样的，只要把应力改成应变就成。塑性应变又称永久应变，指应力全部消失后材料单元体仍保留的应变。等效塑性应变为一个标量，可以用于做屈服函数的内参数。

塑性成形原理？

塑性成形是金属材料在再结晶温度以下进行的压力加工过程。在塑性成形过程中，金属材料在外力作用下产生不可逆的永久变形，以达到所需形状和尺寸。塑性成形的基本原理主要包括以下几个方面：弹性变形与塑性变形：金属材料在受到外力作用时，首先发生弹性变形。当外力增大到一定程度时，金属材料发生塑性变形。塑性变形是不可逆的，并且是金属材料成形的基础。加工硬化：在塑性成形过程中，金属材料会发生加工硬化。这是由于在成形过程中，金属内部的晶粒结构发生变化，导致材料的强度和硬度增加。加工硬化对于控制材料的成形性能具有重要意义。流动与流动应力：在塑性成形过程中，金属材料会发生流动。流动是指材料在应力作用下发生变形和流动。流动应力是材料在流动过程中所受到的应力。了解流动与流动应力对于控制材料的成形过程具有重要意义。成形极限：成形极限是金属材料在塑性成形过程中所能承受的最大变形程度。超过成形极限后，材料会发生破裂或断裂。因此，在塑性成形过程中，需要合理控制变形程度以确保材料能够顺利成形。总之，塑性成形原理是金属材料在再结晶温度以下通过外力作用发生不可逆的永久变形以达到所需形状和尺寸的过程。了解这些基本原理有助于更好地控制金属材料的成形过程。

塑性的概念？

塑性概念是指在一定外力下，表现固体物质具有抗变形的能力。

塑性指标有以下几点：

（1）延伸率：试样断裂后的总延伸率称为极限延伸率。

（2）断面收缩率：试样断裂后所得总断面收缩率称为材料的极限断面收缩率。

塑性反映材料产生永久变形的能力。柔软性反映材料抵抗变形的能力（变形抗力大小）。

金属塑性公式？

塑性指标包含有断后伸长率δ和断面收缩率Ψ

δ＝（试样拉断后的标距长度－试样的原始标距长度）除（试样的原始标距长度）乘百分之百

Ψ＝（试样的原始横截面积－试样拉断后颈处截面积）除（试样的原始横截面积）乘百分之百

The plasticity of iron carbon alloy and plasticity?

In the basic photograph of iron carbon alloy, plasticity is best is (austenite) , intensity is highest is (pearlite) , hardness is highest is (cementite) .

The distinction of plasticity deformation and plasticity?

Deformation is stretch deformation, model changes is model deformation. Both the concept that is physics.

1, property is different, flexibility is out of shape for reversible be out of shape, size of its numerical value and outside force become direct ratio, its coefficient of proportionality calls stretch model amount, material is out of shape in flexibility inside limits, stretch model quantity is constant. And plasticity is out of shape be out of shape to cannot be gone against, project material and component suffer carry exceed flexibility to be out of shape will happen to be out of shape permanently after limits, not recoverable be out of shaping will appear after discharge divides load namely, or say remains is out of shape. 2, the idea is different when the object suffers outside force effect, be out of shape with respect to meeting generation, if outside force purify hind, the object can restore its appearance before and measure completely, this kind is out of shape call flexibility to be out of shape. Material produces deformation below outside force action, and after outer force purify, flexibility is out of shape the part disappears, irreclaimable and reservation comes down that part is out of shape be out of shape for plasticity namely.

3, relevant property object is different metal, plastic the plasticity that waits to have different rate is out of shape ability, reason can call plasticity material. The brittleness material such as glass, pottery and porcelain, black lead is out of shape without plasticity ability.

What calls plasticity? What does plasticity index have?

Plasticity is to point to fall in certain outside force, expressional solid matter is had fight metabolic ability; Plasticity index has outspread rate and section shrinkage.

Alleged plasticity, it is to show solid material is below outside force action happen permanent be out of shape, and the ability that does not destroy its integrality.

It is function of a kind of of the metal serious treatment.

Plasticity index (The Plastic Index) it is to show the metal is in different the ultimate deflection that is out of shape allow below the condition, wait with section shrinkage, outspread rate undertake expression, it is to measure material generation is permanent be out of shape the index of ability.

It is measured below specific requirement, the concussion tenacity that if the section shrinkage when drawing reachs percentage elongation, concussion,experiments, Dui thick or before the first crackle when reducing a test appears tall to compressibility (the biggest compressibility) wait.

Patulous data:

Exponential customarily uses plasticity not to take the numerical value of % to express. Plasticity index is one of the the basiccest, mainest physics index of clay, it mirrorred corporeal composition of clay integratedly, apply extensively at earthy classification and evaluation. Because plasticity index was mirrorred integratedly on certain level,affect all sorts of main factors of agglutinant earth feature. Plasticity index heals big, the grain that makes clear earth heals fine, bigger than expressing an area to heal, of earth stick bead or close water is mineral (if cheat stone) content heals tall, earth lies but the water content span of model condition heals big. That is to say the influence of the mineral part that plasticity index reflects ground can integratedly and grain size. Accordingly, often press plasticity index to undertake classified to stickiness earth on the project. Powdery earth is less than for plasticity index be equal to 10 and bead diameter is more than the grain content of 0.075 not to exceed total mass the earth of 50% ; Stickiness earth is more than for plasticity index 10 and bead diameter is more than the grain content of 0.075 not to exceed total mass the earth of 50% .

Plasticity characteristic?

Bring to bear on to the object outside force, produce stretch deformation when the object when outside force is lesser, exceed some numerical value when outside force, the object produces not recoverable deformation, this calls plasticity deformation.

Plasticity namely object metabolic ability. To it opposite, bring to bear on to one object outside force, the object produces deformation, move except force, discover deformation to disappear, the object restores unvarnished, this is stretch, flexibility jumps over big object, can bear to exceed large outside force and do not produce permanent deformation. And the object with normally bigger plasticity, the least power that can produce permanent deformation place to need is less.

Plasticity unit?

"Plasticity " mensurable evaluation is main by material " outspread rate " and " section shrinkage " will convey. Unit of section shrinkage magnanimity is: General contest; The magnanimity unit of outspread rate is: Delta. "Plasticity " it is right material suffers force happening permanent what the phenomenon that be out of shape and does not destroy its integrality undertakes is qualitative state; It is a kind of description to physical phenomenon, do not have the sense of unit ration alone.

Plasticity meet an emergency and equivalent plasticity meet an emergency which big?

Equivalent plasticity meet an emergency is the physical quantity of the position that the face succumbs after using aggrandizement of certain material classics, the theory of the 4th intensity of its computation formula and the effect stress such as computation is calculated formula is same, want to change stress into meet an emergency to be become only.

Displacement of no less than / meet an emergency is structural metabolic magnanimity same, equivalent plasticity meet an emergency is material plasticity metabolic a magnanimity, equivalent plasticity meet an emergency is a scalar quantity, can use at doing to succumb of function inside parameter.

What classics of heft of each meet an emergency is combined appropriately below condition of general meet an emergency and form is as equivalent as one-way meet an emergency meet an emergency, or say to comparative meet an emergency,

Because equivalent meet an emergency and equivalent stress are equivalent of condition of will complex stress, meet an emergency,become simple one-way drawing or reduce position, reason is usable will determine the stress below complex stress condition, curve of meet an emergency, also call σ E, the sclerotic curve that ε E is metallic stuff or be out of shape the curve that fight force.

The distinction of equivalent plasticity meet an emergency and plasticity meet an emergency?

Equivalent plasticity meet an emergency is the physical quantity of the position that the face succumbs after using aggrandizement of certain material classics, the theory of the 4th intensity of its computation formula and the effect stress such as computation is calculated formula is same, want to change stress into meet an emergency to be become only. Plasticity strain says permanent meet an emergency again, point to the meet an emergency that unit of the data after stress disappears entirely still withholds. Equivalent plasticity meet an emergency is a scalar quantity, can use at doing to succumb of function inside parameter.

Plasticity figuration principle?

Plasticity figuration is the forming process that metallic stuff has below in recrystallization temperature. In plasticity figuration process, what metallic stuff issues generation to cannot be gone against in outside force action is permanent be out of shape, require appearance and measure in order to reach place. The fundamental of plasticity figuration basically includes the following fields: Flexibility is out of shape be out of shape with plasticity: Metallic stuff is used in the master piece outside getting when, produce flexibility to be out of shape above all. When outside force increases fixed rate, metallic stuff produces plasticity to be out of shape. It is not reversible that plasticity is out of shape, and be the foundation of metallic stuff figuration. Treatment is sclerotic: In plasticity figuration process, metallic stuff can produce treatment sclerosis. Because be in figuration process,this is, the grain structure of metallic interior produces change, the strength that causes material and hardness increase. Treatment sclerosis has important sense to controlling the figuration function of material. Flow and stress of going from place to place: In plasticity figuration process, metallic stuff can produce flow. Flow is to point to material to happen to be out of shape and flow below stress action. Stress of going from place to place is material the stress that gets in process of going from place to place. Understanding flow and stress of going from place to place have important sense to controlling the figuration process of material. Figuration limit: Figuration limit is metallic stuff is in plasticity figuration process can susceptive is the biggest deformation. After exceeding figuration limit, material can produce burst or rupture. Accordingly, in plasticity figuration process, need reasonable control deformation in order to ensure material can successful figuration. Anyhow, plasticity figuration principle is metallic stuff carries outside force below in recrystallization temperature what action happening cannot go against is permanent the process that is out of shape with achieving place requires appearance and measure. Understand these fundamental to conduce to the figuration process that controls metallic stuff better.

The concept of plasticity?

Plasticity concept is to point to fall in certain outside force, expressional solid matter is had fight metabolic ability.

Plasticity index has the following:

(1) outspread rate: The total outspread rate after sample ruptures calls the limit outspread rate.

(2) section shrinkage: Shrinkage of total section of the earning after sample ruptures calls the ultimate section shrinkage of material.

Plasticity mirrors material to generate permanent metabolic capacity. Ability of metabolic of resistance of plasticity report data (be out of shape the size that fight force) .

Is metallic plasticity formulary?

Plasticity index bag contains percentage elongation of bring up the rear δ and section shrinkage Ψ

δ ＝ (the gauge length length that sample pulls bring up the rear - the length of primitive gauge length of sample) divide (the length of primitive gauge length of sample) by 100 percent

Ψ ＝ (the primitive cross section of sample is accumulated - sample pulls neck of bring up the rear to manage cut area) except (the primitive cross section of sample is accumulated) by 100 percent