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dollyyang
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2Â¥2008-10-31 13:39:08
dollyyang
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3Â¥2008-11-06 08:19:07
sun7278
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4Â¥2008-11-07 11:55:55
jeffrey6123
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¡ï ¡ï
dollyyang(½ð±Ò+2,VIP+0):3q
dollyyang(½ð±Ò+2,VIP+0):3q
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ÑÓÕ¹ÐÔÊDz»ÄܾßÌå±íÕ÷µÄ£¬Í¨³£Í¨¹ýËÜÐÔÖ¸±êÄܹ»¶¨ÐÔ˵Ã÷ÑÓÕ¹ÐÔ´óС¡£ 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 ¨C 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. |
5Â¥2008-11-07 20:42:43
jeffrey6123
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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 ¨C 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. |
6Â¥2008-11-07 20:45:20
278977824
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7Â¥2008-11-07 21:23:11
materialmg 
½û³æ (СÓÐÃûÆø)
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dollyyang(½ð±Ò+1,VIP+0):3q
dollyyang(½ð±Ò+1,VIP+0):3q
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8Â¥2008-11-09 15:50:07














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