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【求助】 怎么表征金屬的延展性
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本人有一鋁箔(40微米),想對(duì)其延展性進(jìn)行表征? 不知道 有沒有什么方法適用? 能用斷裂伸長(zhǎng)率說(shuō)明么? 呵呵 如有 國(guó)標(biāo)或國(guó)際標(biāo) 標(biāo)準(zhǔn)指導(dǎo)最佳。 (*^__^*) 有蟲子說(shuō) 延展性可以用 塑性來(lái)反映。 塑料測(cè)試 一般做什么測(cè)試? 斷裂伸長(zhǎng)率? 斷面收縮率? 請(qǐng)磚家解答 呵呵 [ Last edited by dollyyang on 2008-11-10 at 10:28 ] |
鐵蟲 (小有名氣)
木蟲 (正式寫手)
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延展性是不能具體表征的,通常通過塑性指標(biāo)能夠定性說(shuō)明延展性大小。 Ref.: It is extremely difficult to use the results from these tests analytically to accurately describe plastic deformation in other applications. This drawback is being addressed by instrumented indentation test standards (ISO 14577 (Metallic materials – Instrumented indentation test for hardness and materials parameters) [7.62] and efforts underway at ASTM). The commercial importance of hardness testing cannot be underestimated and justifies an entire Sect. 7.3 devoted entirely to hardness. |
木蟲 (正式寫手)
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The ductility cannot be estimated by any means. It is extremely difficult to use the results from these tests analytically to accurately describe plastic deformation in other applications. This drawback is being addressed by instrumented indentation test standards (ISO 14577 (Metallic materials – Instrumented indentation test for hardness and materials parameters) [7.62] and efforts underway at ASTM). The commercial importance of hardness testing cannot be underestimated and justifies an entire Sect. 7.3 devoted entirely to hardness. |

禁蟲 (小有名氣)
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