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temper colors

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Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005997
EISBN: 978-1-62708-168-9
...Abstract Abstract Steel, heated in contact with air at temperatures in the tempering range, takes on various temper colors due to the formation of a thin oxide film. This article provides detailed information on temper colors for plain carbon steel, especially on the effects of time...
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Published: 30 August 2021
Fig. 16 Temper colors after heating 1035 carbon steel in air. For example, if a straw color is seen and the time at temperature is known to be 1 h, then the temperature reached is approximately 230 °C (445 °F). More
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Published: 01 January 2002
Fig. 2(b) Side view of broken die halves showing the mating fracture surfaces and temper color (arrow) on the crack surfaces. A front view of this component is shown in Fig. 2(a) . 0.5× More
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Published: 30 August 2021
Fig. 3 AISI O1 tool steel die that cracked during oil quenching. Note the cracks emanating from the sharp corners. The four holes, which are close to the edge, also contributed to cracking. Temper color was observed on the crack walls. More
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Published: 01 January 2002
Fig. 3 AISI O1 tool steel die that cracked during oil quenching. Note the cracks emanating from the sharp corners. The four holes, which are close to the edge, also contributed to cracking. Temper color was observed on the crack walls. More
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Published: 01 January 2002
Fig. 6 Punch made of AISI S7 tool steel that cracked during quenching. Temper color was observed on the crack walls. Cracking was promoted by and located by the very coarse machining marks. Magnetic particles have been used to emphasize the cracks. 0.5× More
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Published: 30 August 2021
Fig. 6 Punch made of AISI S7 tool steel that cracked during quenching. Temper color was observed on the crack walls. Cracking was promoted by and located by the very coarse machining marks. Magnetic particles have been used to emphasize the cracks. Original magnification: 0.5× More
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Published: 01 January 2002
Fig. 16(a) AISI O1 tool steel ring forging that cracked during quenching. The forging was overaustenitized (unstable retained austenite was present) and was decarburized to a depth of about 0.5 mm (0.020 in.). Temper color was present on the crack walls. See also Fig. 16(b) . More
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Published: 30 August 2021
Fig. 2 (a) Front view of an AISI O1 tool steel die that cracked during oil quenching. The die face contains holes that are too close to the edge for safe quenching. Original magnification: 0.6×. (b) Side view of broken die halves showing the mating fracture surfaces and temper color (arrow More
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Published: 30 August 2021
Fig. 16 (a) AISI O1 tool steel ring forging that cracked during quenching. The forging was overaustenitized (unstable retained austenite was present) and was decarburized to a depth of approximately 0.5 mm (0.020 in.). Temper color was present on the crack walls. (b) Interior microstructure More
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Published: 01 December 2004
Fig. 23 Delta ferrite, colored brown in solution-annealed and aged (H900 temper) 17-4 PH stainless steel, revealed using the standard Murakami's reagent at 100 °C (210 °F) for 60 s More
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006818
EISBN: 978-1-62708-329-4
.... While this work is underway, the analyst continues macroscopic examination of the fracture features by opening tight cracks (when present). Because quench cracking is a very common cause of failures, the fracture surfaces should always be checked for temper color. Scale on a crack wall would indicate...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001814
EISBN: 978-1-62708-180-1
.... While this work is underway, the analyst continues macroscopic examination of the fracture features by opening tight cracks (when present). Because quench cracking is a very common cause of failures, the fracture surfaces should always be checked for temper color. Scale on a crack wall would indicate...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006804
EISBN: 978-1-62708-329-4
... by the degree of oxidation that happens in a fire. This is especially true for steels, stainless steel, and nickel alloys. This is referred to as temper colors. Table 2 represents the temper colors that are likely to form on stainless steel type AISI 304 when heated in air ( Ref 9 ). One limitation...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001281
EISBN: 978-1-62708-170-2
... process, and hard anodic process. It describes the limitations imposed by variables, such as alloy composition, surface finish, prior processing, temper or heat treatment, and the use of inserts, on the anodizing processes. The article explains the causes and means adopted for correcting several specific...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003765
EISBN: 978-1-62708-177-1
...Abstract Abstract This article describes the metallographic specimen preparation procedures for cast iron test samples, including mounting, grinding, polishing, and etching. It discusses the makeup and use of black-and-white and selective color etchants and where one might be preferred over...
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Published: 01 December 2004
Fig. 25 Color etching (10% aqueous Na 2 S 2 O 5 ) revealed the lath martensite packet size of AF 1410 ultrahigh-strength steel that was heat treated (austenitized at 900 °C, or 1650 °F, water quenched, and tempered at 675 °C, or 1250 °F). Polarized light illumination. 100×. (G.F. Vander Voort) More
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003766
EISBN: 978-1-62708-177-1
... heated to produce a blue temper color, because the uncolored oxides exhibit strong contrast against the dark fracture. Microexamination Sectioning Relatively soft specimens (less than 35 HRC) can be cut using band saws or hacksaws. However, such operations produce a substantial zone...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006693
EISBN: 978-1-62708-210-5
... architectural sheet provides exceptionally high-quality surfaces after anodizing. The architectural products produced from alloy 5005-H2 x sheet are used on many high-end building projects to meet customer specifications for uniformity and color match. Equivalent specifications of 5005 are: UNS: A95005...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006351
EISBN: 978-1-62708-179-5
... also the section “Color Metallography” in the article “Metallography and Microstructures of Cast Iron” in this Volume). The harder quenched and tempered specimen shown in Fig. 19 contained much less retained austenite than the two specimens described in Fig. 18 with lower hardness after quenching...